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28/1 = c/3.75

Enter proportion values below:

  
---------- ----------
  
  

You entered the following equivalent proportions:

28
1
=
  
c
3.75

Define the proportion formula:

If 2 proportions are equal:
we can cross multiply to get:
Numerator 1
Denominator 1
=
  
Numerator 2
Denominator 2

Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2

Solving for Numerator 2 we get:

Numerator 2  =  Numerator 1 * Denominator 2
  Denominator 1

Evaluate and simplfy

c  =  28 * 3.75
  1

c  =  105
  1







What is the Answer?

c = 105

How does the Proportion Calculator work?

Free Proportion Calculator - 1) Calculates the missing link of 2 equivalent proportions or ratios.
2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or not equivalent. Note: You can use all allowable operators such as =,<,≤,>,≥
This calculator has 4 inputs.

What 3 formulas are used for the Proportion Calculator?

a/b=c/d
ad=bc


For more math formulas, check out our Formula Dossier

What 3 concepts are covered in the Proportion Calculator?

equivalent
equal in value, amount, function, meaning
proportion
n equation in which two ratios are set equal to each other
a/b = c/d
ratio
indicates how many times one number contains another

Example calculations for the Proportion Calculator

  1. a/10=6/12
  2. 2/3x=6/9
  3. -5/6=y/24
  4. 1/2=4/2z
  5. 1/0=6/12
  6. -8/9x > -61/81
  7. 1/2=?/10
  8. x:8=4/32

Proportion Calculator Video


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