Home / 20,490-29,613

Finding the Third Proportional to 20,490 and 29,613

Calculator

Solution

The third proportional to 20,490 and 29,613 is: 42,797.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,490 : 29,613 = 29,613 : x
  2. Step 2: Convert to fraction form
    20,490/29,613 = 29,613/x
  3. Step 3: Cross multiply
    20,490x = 29,613 × 29,613
  4. Step 4: Simplify right side
    20,490x = 876,929,769
  5. Step 5: Solve for x
    x = 876,929,769/20,490
  6. Step 6: Final answer
    x = 42,797.94

Related Problems

Find third proportional to 10,245 and 14,806.50
Half scale
Find third proportional to 40,980 and 59,226
Double scale
Find third proportional to 20,492 and 29,616
Similar ratio
Find third proportional to 30,735 and 44,419.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.