22 | |
31 |
= |
75 |
n |
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
Denominator 2 = | Denominator 1 * Numerator 2 |
Numerator 1 |
n = | 31 * 75 |
22 |
n = | 2325 |
22 |