Home / 18,976.72-28,432.26-14,761.28

Finding the Fourth Proportional to 18,976.72, 28,432.26 and 14,761.28

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Solution

The fourth proportional to 18,976.72, 28,432.26 and 14,761.28 is: 22,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.72 : 28,432.26 = 14,761.28 : x
  2. Step 2: Convert to fraction form
    18,976.72/28,432.26 = 14,761.28/x
  3. Step 3: Cross multiply
    18,976.72x = 28,432.26 × 14,761.28
  4. Step 4: Simplify right side
    18,976.72x = 419,696,550.89
  5. Step 5: Solve for x
    x = 419,696,550.89/18,976.72
  6. Step 6: Final answer
    x = 22,116.39

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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.