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Finding the Fourth Proportional to 18,337.98, 27,471.28 and 13,520.64

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Solution

The fourth proportional to 18,337.98, 27,471.28 and 13,520.64 is: 20,254.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.98 : 27,471.28 = 13,520.64 : x
  2. Step 2: Convert to fraction form
    18,337.98/27,471.28 = 13,520.64/x
  3. Step 3: Cross multiply
    18,337.98x = 27,471.28 × 13,520.64
  4. Step 4: Simplify right side
    18,337.98x = 371,429,373.34
  5. Step 5: Solve for x
    x = 371,429,373.34/18,337.98
  6. Step 6: Final answer
    x = 20,254.65

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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.