Home / 20,001.24-27,553.46-17,120.78

Finding the Fourth Proportional to 20,001.24, 27,553.46 and 17,120.78

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Solution

The fourth proportional to 20,001.24, 27,553.46 and 17,120.78 is: 23,585.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.24 : 27,553.46 = 17,120.78 : x
  2. Step 2: Convert to fraction form
    20,001.24/27,553.46 = 17,120.78/x
  3. Step 3: Cross multiply
    20,001.24x = 27,553.46 × 17,120.78
  4. Step 4: Simplify right side
    20,001.24x = 471,736,641.29
  5. Step 5: Solve for x
    x = 471,736,641.29/20,001.24
  6. Step 6: Final answer
    x = 23,585.37

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1.5x scale

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.