Home / 15,545.60-23,318.40-15,315.20

Finding the Fourth Proportional to 15,545.60, 23,318.40 and 15,315.20

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Solution

The fourth proportional to 15,545.60, 23,318.40 and 15,315.20 is: 22,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,545.60 : 23,318.40 = 15,315.20 : x
  2. Step 2: Convert to fraction form
    15,545.60/23,318.40 = 15,315.20/x
  3. Step 3: Cross multiply
    15,545.60x = 23,318.40 × 15,315.20
  4. Step 4: Simplify right side
    15,545.60x = 357,125,959.68
  5. Step 5: Solve for x
    x = 357,125,959.68/15,545.60
  6. Step 6: Final answer
    x = 22,972.80

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Similar ratio
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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.