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Finding the Fourth Proportional to 20,463.52, 30,705 and 10,600.96

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Solution

The fourth proportional to 20,463.52, 30,705 and 10,600.96 is: 15,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.52 : 30,705 = 10,600.96 : x
  2. Step 2: Convert to fraction form
    20,463.52/30,705 = 10,600.96/x
  3. Step 3: Cross multiply
    20,463.52x = 30,705 × 10,600.96
  4. Step 4: Simplify right side
    20,463.52x = 325,502,476.80
  5. Step 5: Solve for x
    x = 325,502,476.80/20,463.52
  6. Step 6: Final answer
    x = 15,906.48

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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.