Farmer Bob can get 10 gallons of milk from 4 cows. How many gallons of milk can he get from 14 cows?

Farmer Bob can get 10 gallons of milk from 4 cows. How many gallons of milk can he get from 14 cows?

Set up a proportion of gallons to cows where g is the number of gallons per 14 cows:
10/4 = g/14

To solve this proportion for g, we type it in our search engine and we get:
g = 35