Home / 27,296.72-40,945.12-8,578.43

Finding the Fourth Proportional to 27,296.72, 40,945.12 and 8,578.43

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Solution

The fourth proportional to 27,296.72, 40,945.12 and 8,578.43 is: 12,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,296.72 : 40,945.12 = 8,578.43 : x
  2. Step 2: Convert to fraction form
    27,296.72/40,945.12 = 8,578.43/x
  3. Step 3: Cross multiply
    27,296.72x = 40,945.12 × 8,578.43
  4. Step 4: Simplify right side
    27,296.72x = 351,244,912.42
  5. Step 5: Solve for x
    x = 351,244,912.42/27,296.72
  6. Step 6: Final answer
    x = 12,867.66

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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.