Home / 22,456.20-33,672.15-9,309.90

Finding the Fourth Proportional to 22,456.20, 33,672.15 and 9,309.90

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Solution

The fourth proportional to 22,456.20, 33,672.15 and 9,309.90 is: 13,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,456.20 : 33,672.15 = 9,309.90 : x
  2. Step 2: Convert to fraction form
    22,456.20/33,672.15 = 9,309.90/x
  3. Step 3: Cross multiply
    22,456.20x = 33,672.15 × 9,309.90
  4. Step 4: Simplify right side
    22,456.20x = 313,484,349.29
  5. Step 5: Solve for x
    x = 313,484,349.29/22,456.20
  6. Step 6: Final answer
    x = 13,959.81

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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.