Question

37. If 10, 20, x and 40 are in a proportion,
the value of x will be​

Answer 1

Answer:

Given Below

Step-by-step explanation:

Answer

Step-by-step explanation:

We have,

10, 20, x and 40 are in a proportion.

10 : 20 : : x : 40

To find, the value of x = ?

We know that,

a : b : : c : d

Product of means = Product of extremes

a × d = b × c

∴ 20 × x = 10 × 40

⇒ 20x = 400

⇒ x = \dfrac{400}{20}

20

400

⇒ x = 20

∴ The value of x = 20

Thus, the value of x is equal to 20.

Answer 2

Step-by-step explanation:

10/20=x/40(second step cross multiply)

20x=400

x=400/20

x=20