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Finding the Fourth Proportional to 22,990.87, 34,461.79 and 13,108.87

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Solution

The fourth proportional to 22,990.87, 34,461.79 and 13,108.87 is: 19,649.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.87 : 34,461.79 = 13,108.87 : x
  2. Step 2: Convert to fraction form
    22,990.87/34,461.79 = 13,108.87/x
  3. Step 3: Cross multiply
    22,990.87x = 34,461.79 × 13,108.87
  4. Step 4: Simplify right side
    22,990.87x = 451,755,135.38
  5. Step 5: Solve for x
    x = 451,755,135.38/22,990.87
  6. Step 6: Final answer
    x = 19,649.33

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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.