Home / 18,458.74-27,708.15-17,131.96

Finding the Fourth Proportional to 18,458.74, 27,708.15 and 17,131.96

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Solution

The fourth proportional to 18,458.74, 27,708.15 and 17,131.96 is: 25,716.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.74 : 27,708.15 = 17,131.96 : x
  2. Step 2: Convert to fraction form
    18,458.74/27,708.15 = 17,131.96/x
  3. Step 3: Cross multiply
    18,458.74x = 27,708.15 × 17,131.96
  4. Step 4: Simplify right side
    18,458.74x = 474,694,917.47
  5. Step 5: Solve for x
    x = 474,694,917.47/18,458.74
  6. Step 6: Final answer
    x = 25,716.54

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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.