Home / 38,487-57,732.72-10,787.16

Finding the Fourth Proportional to 38,487, 57,732.72 and 10,787.16

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Solution

The fourth proportional to 38,487, 57,732.72 and 10,787.16 is: 16,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487 : 57,732.72 = 10,787.16 : x
  2. Step 2: Convert to fraction form
    38,487/57,732.72 = 10,787.16/x
  3. Step 3: Cross multiply
    38,487x = 57,732.72 × 10,787.16
  4. Step 4: Simplify right side
    38,487x = 622,772,087.88
  5. Step 5: Solve for x
    x = 622,772,087.88/38,487
  6. Step 6: Final answer
    x = 16,181.36

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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.