Home / 20,517.20-28,295.88-16,537.04

Finding the Fourth Proportional to 20,517.20, 28,295.88 and 16,537.04

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Solution

The fourth proportional to 20,517.20, 28,295.88 and 16,537.04 is: 22,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.20 : 28,295.88 = 16,537.04 : x
  2. Step 2: Convert to fraction form
    20,517.20/28,295.88 = 16,537.04/x
  3. Step 3: Cross multiply
    20,517.20x = 28,295.88 × 16,537.04
  4. Step 4: Simplify right side
    20,517.20x = 467,930,099.40
  5. Step 5: Solve for x
    x = 467,930,099.40/20,517.20
  6. Step 6: Final answer
    x = 22,806.72

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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.