Question

if 45, 60, 15, y are in proportion then find the value of y​

Answer 1

Answer:

Step-by-step explanation:

45 : 60 = 15 : y

⇒Product of extremes = Product of means

⇒ 45 × y = 60 × 15

⇒ y = 900 / 45 ( ∵ 60 × 15 = 900; transposing )

⇒ y = 20

∴ y = 20 is the answer.