Home / 42,487.27-63,727.22-19,992.61

Finding the Fourth Proportional to 42,487.27, 63,727.22 and 19,992.61

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Solution

The fourth proportional to 42,487.27, 63,727.22 and 19,992.61 is: 29,987.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487.27 : 63,727.22 = 19,992.61 : x
  2. Step 2: Convert to fraction form
    42,487.27/63,727.22 = 19,992.61/x
  3. Step 3: Cross multiply
    42,487.27x = 63,727.22 × 19,992.61
  4. Step 4: Simplify right side
    42,487.27x = 1,274,073,585.48
  5. Step 5: Solve for x
    x = 1,274,073,585.48/42,487.27
  6. Step 6: Final answer
    x = 29,987.19

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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.