Home / 28,257.20-38,996.78-16,321.04

Finding the Fourth Proportional to 28,257.20, 38,996.78 and 16,321.04

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Solution

The fourth proportional to 28,257.20, 38,996.78 and 16,321.04 is: 22,524.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.20 : 38,996.78 = 16,321.04 : x
  2. Step 2: Convert to fraction form
    28,257.20/38,996.78 = 16,321.04/x
  3. Step 3: Cross multiply
    28,257.20x = 38,996.78 × 16,321.04
  4. Step 4: Simplify right side
    28,257.20x = 636,468,006.25
  5. Step 5: Solve for x
    x = 636,468,006.25/28,257.20
  6. Step 6: Final answer
    x = 22,524.10

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1.5x scale

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.