Home / 42,175.17-63,272.30-12,591.90

Finding the Fourth Proportional to 42,175.17, 63,272.30 and 12,591.90

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Solution

The fourth proportional to 42,175.17, 63,272.30 and 12,591.90 is: 18,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,175.17 : 63,272.30 = 12,591.90 : x
  2. Step 2: Convert to fraction form
    42,175.17/63,272.30 = 12,591.90/x
  3. Step 3: Cross multiply
    42,175.17x = 63,272.30 × 12,591.90
  4. Step 4: Simplify right side
    42,175.17x = 796,718,474.37
  5. Step 5: Solve for x
    x = 796,718,474.37/42,175.17
  6. Step 6: Final answer
    x = 18,890.70

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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.