Home / 42,663.18-63,990.45-11,501.58

Finding the Fourth Proportional to 42,663.18, 63,990.45 and 11,501.58

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Solution

The fourth proportional to 42,663.18, 63,990.45 and 11,501.58 is: 17,251.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,663.18 : 63,990.45 = 11,501.58 : x
  2. Step 2: Convert to fraction form
    42,663.18/63,990.45 = 11,501.58/x
  3. Step 3: Cross multiply
    42,663.18x = 63,990.45 × 11,501.58
  4. Step 4: Simplify right side
    42,663.18x = 735,991,279.91
  5. Step 5: Solve for x
    x = 735,991,279.91/42,663.18
  6. Step 6: Final answer
    x = 17,251.21

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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.