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Finding the Fourth Proportional to 19,937.08, 29,909.40 and 8,250.40

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Solution

The fourth proportional to 19,937.08, 29,909.40 and 8,250.40 is: 12,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.08 : 29,909.40 = 8,250.40 : x
  2. Step 2: Convert to fraction form
    19,937.08/29,909.40 = 8,250.40/x
  3. Step 3: Cross multiply
    19,937.08x = 29,909.40 × 8,250.40
  4. Step 4: Simplify right side
    19,937.08x = 246,764,513.76
  5. Step 5: Solve for x
    x = 246,764,513.76/19,937.08
  6. Step 6: Final answer
    x = 12,377.16

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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.