Question

The ratio of acres of barley to acres of corn at a small farm is 3 : 4. Find the equivalent ratio that uses 18 acres of barley.

Answer 1

24 acres of corn, so the equivalent ratio is 18 acres of barley to 24 acres of corn.

Explanation:

18 ÷ 3 = 6, so multiply 4 × 6 to obtain 24 acres of corn.

Alternately: Let c be the number of acres of corn. Set up and solve this proportion.

`(3)/(4) = (18)/(c)`

`3c = 72`

`c = 24`