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Finding the Fourth Proportional to 20,591.27, 30,892.04 and 9,505.70

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Solution

The fourth proportional to 20,591.27, 30,892.04 and 9,505.70 is: 14,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.27 : 30,892.04 = 9,505.70 : x
  2. Step 2: Convert to fraction form
    20,591.27/30,892.04 = 9,505.70/x
  3. Step 3: Cross multiply
    20,591.27x = 30,892.04 × 9,505.70
  4. Step 4: Simplify right side
    20,591.27x = 293,650,464.63
  5. Step 5: Solve for x
    x = 293,650,464.63/20,591.27
  6. Step 6: Final answer
    x = 14,260.92

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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.