Home / 40,622.95-60,940.20-12,545.29

Finding the Fourth Proportional to 40,622.95, 60,940.20 and 12,545.29

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Solution

The fourth proportional to 40,622.95, 60,940.20 and 12,545.29 is: 18,819.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,622.95 : 60,940.20 = 12,545.29 : x
  2. Step 2: Convert to fraction form
    40,622.95/60,940.20 = 12,545.29/x
  3. Step 3: Cross multiply
    40,622.95x = 60,940.20 × 12,545.29
  4. Step 4: Simplify right side
    40,622.95x = 764,512,481.66
  5. Step 5: Solve for x
    x = 764,512,481.66/40,622.95
  6. Step 6: Final answer
    x = 18,819.72

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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.