Home / 42,599.40-63,910.14-20,429.88

Finding the Fourth Proportional to 42,599.40, 63,910.14 and 20,429.88

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Solution

The fourth proportional to 42,599.40, 63,910.14 and 20,429.88 is: 30,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,599.40 : 63,910.14 = 20,429.88 : x
  2. Step 2: Convert to fraction form
    42,599.40/63,910.14 = 20,429.88/x
  3. Step 3: Cross multiply
    42,599.40x = 63,910.14 × 20,429.88
  4. Step 4: Simplify right side
    42,599.40x = 1,305,676,490.98
  5. Step 5: Solve for x
    x = 1,305,676,490.98/42,599.40
  6. Step 6: Final answer
    x = 30,650.11

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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.