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Finding the Fourth Proportional to 27,221.92, 40,843.92 and 18,451.84

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Solution

The fourth proportional to 27,221.92, 40,843.92 and 18,451.84 is: 27,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.92 : 40,843.92 = 18,451.84 : x
  2. Step 2: Convert to fraction form
    27,221.92/40,843.92 = 18,451.84/x
  3. Step 3: Cross multiply
    27,221.92x = 40,843.92 × 18,451.84
  4. Step 4: Simplify right side
    27,221.92x = 753,645,476.81
  5. Step 5: Solve for x
    x = 753,645,476.81/27,221.92
  6. Step 6: Final answer
    x = 27,685.24

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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.