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Finding the Fourth Proportional to 18,179.52, 27,213.10 and 15,522.72

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Solution

The fourth proportional to 18,179.52, 27,213.10 and 15,522.72 is: 23,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.52 : 27,213.10 = 15,522.72 : x
  2. Step 2: Convert to fraction form
    18,179.52/27,213.10 = 15,522.72/x
  3. Step 3: Cross multiply
    18,179.52x = 27,213.10 × 15,522.72
  4. Step 4: Simplify right side
    18,179.52x = 422,421,331.63
  5. Step 5: Solve for x
    x = 422,421,331.63/18,179.52
  6. Step 6: Final answer
    x = 23,236.11

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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.