Home / 42,663.68-63,991.20-11,502.08

Finding the Fourth Proportional to 42,663.68, 63,991.20 and 11,502.08

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Solution

The fourth proportional to 42,663.68, 63,991.20 and 11,502.08 is: 17,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,663.68 : 63,991.20 = 11,502.08 : x
  2. Step 2: Convert to fraction form
    42,663.68/63,991.20 = 11,502.08/x
  3. Step 3: Cross multiply
    42,663.68x = 63,991.20 × 11,502.08
  4. Step 4: Simplify right side
    42,663.68x = 736,031,901.70
  5. Step 5: Solve for x
    x = 736,031,901.70/42,663.68
  6. Step 6: Final answer
    x = 17,251.96

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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.