Home / 28,385.53-39,170.14-16,446.74

Finding the Fourth Proportional to 28,385.53, 39,170.14 and 16,446.74

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Solution

The fourth proportional to 28,385.53, 39,170.14 and 16,446.74 is: 22,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385.53 : 39,170.14 = 16,446.74 : x
  2. Step 2: Convert to fraction form
    28,385.53/39,170.14 = 16,446.74/x
  3. Step 3: Cross multiply
    28,385.53x = 39,170.14 × 16,446.74
  4. Step 4: Simplify right side
    28,385.53x = 644,220,871.38
  5. Step 5: Solve for x
    x = 644,220,871.38/28,385.53
  6. Step 6: Final answer
    x = 22,695.40

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Half scale
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Double scale
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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.