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Finding the Fourth Proportional to 20,101.97, 30,153.04 and 8,406.99

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Solution

The fourth proportional to 20,101.97, 30,153.04 and 8,406.99 is: 12,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.97 : 30,153.04 = 8,406.99 : x
  2. Step 2: Convert to fraction form
    20,101.97/30,153.04 = 8,406.99/x
  3. Step 3: Cross multiply
    20,101.97x = 30,153.04 × 8,406.99
  4. Step 4: Simplify right side
    20,101.97x = 253,496,284.73
  5. Step 5: Solve for x
    x = 253,496,284.73/20,101.97
  6. Step 6: Final answer
    x = 12,610.52

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Double scale
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Similar ratio
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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.