Home / 41,326.20-61,989.30-13,620.60

Finding the Fourth Proportional to 41,326.20, 61,989.30 and 13,620.60

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Solution

The fourth proportional to 41,326.20, 61,989.30 and 13,620.60 is: 20,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,326.20 : 61,989.30 = 13,620.60 : x
  2. Step 2: Convert to fraction form
    41,326.20/61,989.30 = 13,620.60/x
  3. Step 3: Cross multiply
    41,326.20x = 61,989.30 × 13,620.60
  4. Step 4: Simplify right side
    41,326.20x = 844,331,459.58
  5. Step 5: Solve for x
    x = 844,331,459.58/41,326.20
  6. Step 6: Final answer
    x = 20,430.90

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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.