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Finding the Fourth Proportional to 26,949, 40,430.04 and 8,481

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Solution

The fourth proportional to 26,949, 40,430.04 and 8,481 is: 12,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,949 : 40,430.04 = 8,481 : x
  2. Step 2: Convert to fraction form
    26,949/40,430.04 = 8,481/x
  3. Step 3: Cross multiply
    26,949x = 40,430.04 × 8,481
  4. Step 4: Simplify right side
    26,949x = 342,887,169.24
  5. Step 5: Solve for x
    x = 342,887,169.24/26,949
  6. Step 6: Final answer
    x = 12,723.56

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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.