Home / 45,227.20-67,830-13,630.72

Finding the Fourth Proportional to 45,227.20, 67,830 and 13,630.72

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Solution

The fourth proportional to 45,227.20, 67,830 and 13,630.72 is: 20,442.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,227.20 : 67,830 = 13,630.72 : x
  2. Step 2: Convert to fraction form
    45,227.20/67,830 = 13,630.72/x
  3. Step 3: Cross multiply
    45,227.20x = 67,830 × 13,630.72
  4. Step 4: Simplify right side
    45,227.20x = 924,571,737.60
  5. Step 5: Solve for x
    x = 924,571,737.60/45,227.20
  6. Step 6: Final answer
    x = 20,442.83

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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.