Home / 28,120.93-42,180.33-7,061.13

Finding the Fourth Proportional to 28,120.93, 42,180.33 and 7,061.13

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Solution

The fourth proportional to 28,120.93, 42,180.33 and 7,061.13 is: 10,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.93 : 42,180.33 = 7,061.13 : x
  2. Step 2: Convert to fraction form
    28,120.93/42,180.33 = 7,061.13/x
  3. Step 3: Cross multiply
    28,120.93x = 42,180.33 × 7,061.13
  4. Step 4: Simplify right side
    28,120.93x = 297,840,793.57
  5. Step 5: Solve for x
    x = 297,840,793.57/28,120.93
  6. Step 6: Final answer
    x = 10,591.43

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.