Home / 38,787.90-58,181.79-12,496.50

Finding the Fourth Proportional to 38,787.90, 58,181.79 and 12,496.50

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Solution

The fourth proportional to 38,787.90, 58,181.79 and 12,496.50 is: 18,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.90 : 58,181.79 = 12,496.50 : x
  2. Step 2: Convert to fraction form
    38,787.90/58,181.79 = 12,496.50/x
  3. Step 3: Cross multiply
    38,787.90x = 58,181.79 × 12,496.50
  4. Step 4: Simplify right side
    38,787.90x = 727,068,738.74
  5. Step 5: Solve for x
    x = 727,068,738.74/38,787.90
  6. Step 6: Final answer
    x = 18,744.73

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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.