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Finding the Fourth Proportional to 27,288.30, 40,932.42 and 8,569.80

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Solution

The fourth proportional to 27,288.30, 40,932.42 and 8,569.80 is: 12,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,288.30 : 40,932.42 = 8,569.80 : x
  2. Step 2: Convert to fraction form
    27,288.30/40,932.42 = 8,569.80/x
  3. Step 3: Cross multiply
    27,288.30x = 40,932.42 × 8,569.80
  4. Step 4: Simplify right side
    27,288.30x = 350,782,652.92
  5. Step 5: Solve for x
    x = 350,782,652.92/27,288.30
  6. Step 6: Final answer
    x = 12,854.69

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1.5x scale

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.