Home / 38,787.78-58,144.56-12,474

Finding the Fourth Proportional to 38,787.78, 58,144.56 and 12,474

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Solution

The fourth proportional to 38,787.78, 58,144.56 and 12,474 is: 18,699.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.78 : 58,144.56 = 12,474 : x
  2. Step 2: Convert to fraction form
    38,787.78/58,144.56 = 12,474/x
  3. Step 3: Cross multiply
    38,787.78x = 58,144.56 × 12,474
  4. Step 4: Simplify right side
    38,787.78x = 725,295,241.44
  5. Step 5: Solve for x
    x = 725,295,241.44/38,787.78
  6. Step 6: Final answer
    x = 18,699.07

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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.