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Finding the Fourth Proportional to 38,843.84, 58,264.80 and 12,550.40

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Solution

The fourth proportional to 38,843.84, 58,264.80 and 12,550.40 is: 18,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,843.84 : 58,264.80 = 12,550.40 : x
  2. Step 2: Convert to fraction form
    38,843.84/58,264.80 = 12,550.40/x
  3. Step 3: Cross multiply
    38,843.84x = 58,264.80 × 12,550.40
  4. Step 4: Simplify right side
    38,843.84x = 731,246,545.92
  5. Step 5: Solve for x
    x = 731,246,545.92/38,843.84
  6. Step 6: Final answer
    x = 18,825.29

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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.