Home / 28,909.23-43,385.73-13,337.79

Finding the Fourth Proportional to 28,909.23, 43,385.73 and 13,337.79

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Solution

The fourth proportional to 28,909.23, 43,385.73 and 13,337.79 is: 20,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,909.23 : 43,385.73 = 13,337.79 : x
  2. Step 2: Convert to fraction form
    28,909.23/43,385.73 = 13,337.79/x
  3. Step 3: Cross multiply
    28,909.23x = 43,385.73 × 13,337.79
  4. Step 4: Simplify right side
    28,909.23x = 578,669,755.74
  5. Step 5: Solve for x
    x = 578,669,755.74/28,909.23
  6. Step 6: Final answer
    x = 20,016.78

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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.