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Finding the Fourth Proportional to 18,105.08, 27,079.86 and 16,117.88

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Solution

The fourth proportional to 18,105.08, 27,079.86 and 16,117.88 is: 24,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.08 : 27,079.86 = 16,117.88 : x
  2. Step 2: Convert to fraction form
    18,105.08/27,079.86 = 16,117.88/x
  3. Step 3: Cross multiply
    18,105.08x = 27,079.86 × 16,117.88
  4. Step 4: Simplify right side
    18,105.08x = 436,469,933.90
  5. Step 5: Solve for x
    x = 436,469,933.90/18,105.08
  6. Step 6: Final answer
    x = 24,107.59

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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.