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Finding the Fourth Proportional to 20,468.97, 30,703.46 and 5,677.97

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Solution

The fourth proportional to 20,468.97, 30,703.46 and 5,677.97 is: 8,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.97 : 30,703.46 = 5,677.97 : x
  2. Step 2: Convert to fraction form
    20,468.97/30,703.46 = 5,677.97/x
  3. Step 3: Cross multiply
    20,468.97x = 30,703.46 × 5,677.97
  4. Step 4: Simplify right side
    20,468.97x = 174,333,142.87
  5. Step 5: Solve for x
    x = 174,333,142.87/20,468.97
  6. Step 6: Final answer
    x = 8,516.95

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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.