Home / 20,915,259.28-28,863,757.92-11,623,221.04

Finding the Fourth Proportional to 20,915,259.28, 28,863,757.92 and 11,623,221.04

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Solution

The fourth proportional to 20,915,259.28, 28,863,757.92 and 11,623,221.04 is: 16,040,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,259.28 : 28,863,757.92 = 11,623,221.04 : x
  2. Step 2: Convert to fraction form
    20,915,259.28/28,863,757.92 = 11,623,221.04/x
  3. Step 3: Cross multiply
    20,915,259.28x = 28,863,757.92 × 11,623,221.04
  4. Step 4: Simplify right side
    20,915,259.28x = 335,489,838,349,210.62
  5. Step 5: Solve for x
    x = 335,489,838,349,210.62/20,915,259.28
  6. Step 6: Final answer
    x = 16,040,434.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.