Home / 41,147.28-61,711.20-18,946.80

Finding the Fourth Proportional to 41,147.28, 61,711.20 and 18,946.80

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Solution

The fourth proportional to 41,147.28, 61,711.20 and 18,946.80 is: 28,415.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,147.28 : 61,711.20 = 18,946.80 : x
  2. Step 2: Convert to fraction form
    41,147.28/61,711.20 = 18,946.80/x
  3. Step 3: Cross multiply
    41,147.28x = 61,711.20 × 18,946.80
  4. Step 4: Simplify right side
    41,147.28x = 1,169,229,764.16
  5. Step 5: Solve for x
    x = 1,169,229,764.16/41,147.28
  6. Step 6: Final answer
    x = 28,415.72

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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.