Home / 38,665.56-57,992.94-12,372.60

Finding the Fourth Proportional to 38,665.56, 57,992.94 and 12,372.60

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Solution

The fourth proportional to 38,665.56, 57,992.94 and 12,372.60 is: 18,557.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.56 : 57,992.94 = 12,372.60 : x
  2. Step 2: Convert to fraction form
    38,665.56/57,992.94 = 12,372.60/x
  3. Step 3: Cross multiply
    38,665.56x = 57,992.94 × 12,372.60
  4. Step 4: Simplify right side
    38,665.56x = 717,523,449.44
  5. Step 5: Solve for x
    x = 717,523,449.44/38,665.56
  6. Step 6: Final answer
    x = 18,557.17

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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.