Home / 20,037.94-27,642.33-12,481.78

Finding the Fourth Proportional to 20,037.94, 27,642.33 and 12,481.78

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Solution

The fourth proportional to 20,037.94, 27,642.33 and 12,481.78 is: 17,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.94 : 27,642.33 = 12,481.78 : x
  2. Step 2: Convert to fraction form
    20,037.94/27,642.33 = 12,481.78/x
  3. Step 3: Cross multiply
    20,037.94x = 27,642.33 × 12,481.78
  4. Step 4: Simplify right side
    20,037.94x = 345,025,481.75
  5. Step 5: Solve for x
    x = 345,025,481.75/20,037.94
  6. Step 6: Final answer
    x = 17,218.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.