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Finding the Fourth Proportional to 20,251.88, 27,947.50 and 11,299.38

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Solution

The fourth proportional to 20,251.88, 27,947.50 and 11,299.38 is: 15,593.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.88 : 27,947.50 = 11,299.38 : x
  2. Step 2: Convert to fraction form
    20,251.88/27,947.50 = 11,299.38/x
  3. Step 3: Cross multiply
    20,251.88x = 27,947.50 × 11,299.38
  4. Step 4: Simplify right side
    20,251.88x = 315,789,422.55
  5. Step 5: Solve for x
    x = 315,789,422.55/20,251.88
  6. Step 6: Final answer
    x = 15,593.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.