Home / 19,489.12-29,233.68-15,617.92

Finding the Fourth Proportional to 19,489.12, 29,233.68 and 15,617.92

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Solution

The fourth proportional to 19,489.12, 29,233.68 and 15,617.92 is: 23,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.12 : 29,233.68 = 15,617.92 : x
  2. Step 2: Convert to fraction form
    19,489.12/29,233.68 = 15,617.92/x
  3. Step 3: Cross multiply
    19,489.12x = 29,233.68 × 15,617.92
  4. Step 4: Simplify right side
    19,489.12x = 456,569,275.55
  5. Step 5: Solve for x
    x = 456,569,275.55/19,489.12
  6. Step 6: Final answer
    x = 23,426.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.