Home / 35,720.71-49,294.19-20,613.20

Finding the Fourth Proportional to 35,720.71, 49,294.19 and 20,613.20

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Solution

The fourth proportional to 35,720.71, 49,294.19 and 20,613.20 is: 28,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.71 : 49,294.19 = 20,613.20 : x
  2. Step 2: Convert to fraction form
    35,720.71/49,294.19 = 20,613.20/x
  3. Step 3: Cross multiply
    35,720.71x = 49,294.19 × 20,613.20
  4. Step 4: Simplify right side
    35,720.71x = 1,016,110,802.37
  5. Step 5: Solve for x
    x = 1,016,110,802.37/35,720.71
  6. Step 6: Final answer
    x = 28,445.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.