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Finding the Fourth Proportional to 17,917.82, 26,873.22 and 17,028.78

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Solution

The fourth proportional to 17,917.82, 26,873.22 and 17,028.78 is: 25,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.82 : 26,873.22 = 17,028.78 : x
  2. Step 2: Convert to fraction form
    17,917.82/26,873.22 = 17,028.78/x
  3. Step 3: Cross multiply
    17,917.82x = 26,873.22 × 17,028.78
  4. Step 4: Simplify right side
    17,917.82x = 457,618,151.27
  5. Step 5: Solve for x
    x = 457,618,151.27/17,917.82
  6. Step 6: Final answer
    x = 25,539.83

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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.