Home / 19,760.76-29,641.20-5,721.96

Finding the Fourth Proportional to 19,760.76, 29,641.20 and 5,721.96

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Solution

The fourth proportional to 19,760.76, 29,641.20 and 5,721.96 is: 8,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.76 : 29,641.20 = 5,721.96 : x
  2. Step 2: Convert to fraction form
    19,760.76/29,641.20 = 5,721.96/x
  3. Step 3: Cross multiply
    19,760.76x = 29,641.20 × 5,721.96
  4. Step 4: Simplify right side
    19,760.76x = 169,605,760.75
  5. Step 5: Solve for x
    x = 169,605,760.75/19,760.76
  6. Step 6: Final answer
    x = 8,582.96

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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.