Home / 25,383.78-38,100.27-12,245.38

Finding the Fourth Proportional to 25,383.78, 38,100.27 and 12,245.38

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Solution

The fourth proportional to 25,383.78, 38,100.27 and 12,245.38 is: 18,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,383.78 : 38,100.27 = 12,245.38 : x
  2. Step 2: Convert to fraction form
    25,383.78/38,100.27 = 12,245.38/x
  3. Step 3: Cross multiply
    25,383.78x = 38,100.27 × 12,245.38
  4. Step 4: Simplify right side
    25,383.78x = 466,552,234.92
  5. Step 5: Solve for x
    x = 466,552,234.92/25,383.78
  6. Step 6: Final answer
    x = 18,379.94

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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.