Home / 22,694.24-31,318.68-13,743.28

Finding the Fourth Proportional to 22,694.24, 31,318.68 and 13,743.28

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Solution

The fourth proportional to 22,694.24, 31,318.68 and 13,743.28 is: 18,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,694.24 : 31,318.68 = 13,743.28 : x
  2. Step 2: Convert to fraction form
    22,694.24/31,318.68 = 13,743.28/x
  3. Step 3: Cross multiply
    22,694.24x = 31,318.68 × 13,743.28
  4. Step 4: Simplify right side
    22,694.24x = 430,421,388.47
  5. Step 5: Solve for x
    x = 430,421,388.47/22,694.24
  6. Step 6: Final answer
    x = 18,966.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.