Home / 18,909.80-28,377.46-14,233.27

Finding the Fourth Proportional to 18,909.80, 28,377.46 and 14,233.27

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Solution

The fourth proportional to 18,909.80, 28,377.46 and 14,233.27 is: 21,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909.80 : 28,377.46 = 14,233.27 : x
  2. Step 2: Convert to fraction form
    18,909.80/28,377.46 = 14,233.27/x
  3. Step 3: Cross multiply
    18,909.80x = 28,377.46 × 14,233.27
  4. Step 4: Simplify right side
    18,909.80x = 403,904,050.09
  5. Step 5: Solve for x
    x = 403,904,050.09/18,909.80
  6. Step 6: Final answer
    x = 21,359.51

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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.