Home / 40,991.85-61,469.55-18,793.80

Finding the Fourth Proportional to 40,991.85, 61,469.55 and 18,793.80

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Solution

The fourth proportional to 40,991.85, 61,469.55 and 18,793.80 is: 28,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,991.85 : 61,469.55 = 18,793.80 : x
  2. Step 2: Convert to fraction form
    40,991.85/61,469.55 = 18,793.80/x
  3. Step 3: Cross multiply
    40,991.85x = 61,469.55 × 18,793.80
  4. Step 4: Simplify right side
    40,991.85x = 1,155,246,428.79
  5. Step 5: Solve for x
    x = 1,155,246,428.79/40,991.85
  6. Step 6: Final answer
    x = 28,182.34

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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.