Home / 27,785.20-41,687.40-12,200.56

Finding the Fourth Proportional to 27,785.20, 41,687.40 and 12,200.56

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Solution

The fourth proportional to 27,785.20, 41,687.40 and 12,200.56 is: 18,305.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,785.20 : 41,687.40 = 12,200.56 : x
  2. Step 2: Convert to fraction form
    27,785.20/41,687.40 = 12,200.56/x
  3. Step 3: Cross multiply
    27,785.20x = 41,687.40 × 12,200.56
  4. Step 4: Simplify right side
    27,785.20x = 508,609,624.94
  5. Step 5: Solve for x
    x = 508,609,624.94/27,785.20
  6. Step 6: Final answer
    x = 18,305.06

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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.