Home / 42,489.76-63,733.56-11,324.92

Finding the Fourth Proportional to 42,489.76, 63,733.56 and 11,324.92

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Solution

The fourth proportional to 42,489.76, 63,733.56 and 11,324.92 is: 16,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,489.76 : 63,733.56 = 11,324.92 : x
  2. Step 2: Convert to fraction form
    42,489.76/63,733.56 = 11,324.92/x
  3. Step 3: Cross multiply
    42,489.76x = 63,733.56 × 11,324.92
  4. Step 4: Simplify right side
    42,489.76x = 721,777,468.32
  5. Step 5: Solve for x
    x = 721,777,468.32/42,489.76
  6. Step 6: Final answer
    x = 16,987.09

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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.