Home / 41,129.28-61,684.20-18,928.80

Finding the Fourth Proportional to 41,129.28, 61,684.20 and 18,928.80

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Solution

The fourth proportional to 41,129.28, 61,684.20 and 18,928.80 is: 28,388.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.28 : 61,684.20 = 18,928.80 : x
  2. Step 2: Convert to fraction form
    41,129.28/61,684.20 = 18,928.80/x
  3. Step 3: Cross multiply
    41,129.28x = 61,684.20 × 18,928.80
  4. Step 4: Simplify right side
    41,129.28x = 1,167,607,884.96
  5. Step 5: Solve for x
    x = 1,167,607,884.96/41,129.28
  6. Step 6: Final answer
    x = 28,388.73

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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.