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Finding the Fourth Proportional to 33,144.14, 45,738.90 and 18,240.14

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Solution

The fourth proportional to 33,144.14, 45,738.90 and 18,240.14 is: 25,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,144.14 : 45,738.90 = 18,240.14 : x
  2. Step 2: Convert to fraction form
    33,144.14/45,738.90 = 18,240.14/x
  3. Step 3: Cross multiply
    33,144.14x = 45,738.90 × 18,240.14
  4. Step 4: Simplify right side
    33,144.14x = 834,283,939.45
  5. Step 5: Solve for x
    x = 834,283,939.45/33,144.14
  6. Step 6: Final answer
    x = 25,171.39

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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.