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Finding the Fourth Proportional to 27,801.80, 41,701.44 and 8,079.92

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Solution

The fourth proportional to 27,801.80, 41,701.44 and 8,079.92 is: 12,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.80 : 41,701.44 = 8,079.92 : x
  2. Step 2: Convert to fraction form
    27,801.80/41,701.44 = 8,079.92/x
  3. Step 3: Cross multiply
    27,801.80x = 41,701.44 × 8,079.92
  4. Step 4: Simplify right side
    27,801.80x = 336,944,299.08
  5. Step 5: Solve for x
    x = 336,944,299.08/27,801.80
  6. Step 6: Final answer
    x = 12,119.51

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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.