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Finding the Fourth Proportional to 33,131.25, 45,721.13 and 18,227.25

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Solution

The fourth proportional to 33,131.25, 45,721.13 and 18,227.25 is: 25,153.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,131.25 : 45,721.13 = 18,227.25 : x
  2. Step 2: Convert to fraction form
    33,131.25/45,721.13 = 18,227.25/x
  3. Step 3: Cross multiply
    33,131.25x = 45,721.13 × 18,227.25
  4. Step 4: Simplify right side
    33,131.25x = 833,370,375.66
  5. Step 5: Solve for x
    x = 833,370,375.66/33,131.25
  6. Step 6: Final answer
    x = 25,153.61

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