Home / 28,254.20-38,992.62-16,318.04

Finding the Fourth Proportional to 28,254.20, 38,992.62 and 16,318.04

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Solution

The fourth proportional to 28,254.20, 38,992.62 and 16,318.04 is: 22,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.20 : 38,992.62 = 16,318.04 : x
  2. Step 2: Convert to fraction form
    28,254.20/38,992.62 = 16,318.04/x
  3. Step 3: Cross multiply
    28,254.20x = 38,992.62 × 16,318.04
  4. Step 4: Simplify right side
    28,254.20x = 636,283,132.86
  5. Step 5: Solve for x
    x = 636,283,132.86/28,254.20
  6. Step 6: Final answer
    x = 22,519.95

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Why These Related Problems?

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