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Finding the Fourth Proportional to 19,935.29, 29,906.60 and 8,249.42

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Solution

The fourth proportional to 19,935.29, 29,906.60 and 8,249.42 is: 12,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,935.29 : 29,906.60 = 8,249.42 : x
  2. Step 2: Convert to fraction form
    19,935.29/29,906.60 = 8,249.42/x
  3. Step 3: Cross multiply
    19,935.29x = 29,906.60 × 8,249.42
  4. Step 4: Simplify right side
    19,935.29x = 246,712,137.69
  5. Step 5: Solve for x
    x = 246,712,137.69/19,935.29
  6. Step 6: Final answer
    x = 12,375.65

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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.