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Finding the Fourth Proportional to 18,436.10, 27,654.10 and 14,720.92

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Solution

The fourth proportional to 18,436.10, 27,654.10 and 14,720.92 is: 22,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.10 : 27,654.10 = 14,720.92 : x
  2. Step 2: Convert to fraction form
    18,436.10/27,654.10 = 14,720.92/x
  3. Step 3: Cross multiply
    18,436.10x = 27,654.10 × 14,720.92
  4. Step 4: Simplify right side
    18,436.10x = 407,093,793.77
  5. Step 5: Solve for x
    x = 407,093,793.77/18,436.10
  6. Step 6: Final answer
    x = 22,081.34

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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.