Home / 27,286.40-40,945.31-11,490.20

Finding the Fourth Proportional to 27,286.40, 40,945.31 and 11,490.20

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Solution

The fourth proportional to 27,286.40, 40,945.31 and 11,490.20 is: 17,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,286.40 : 40,945.31 = 11,490.20 : x
  2. Step 2: Convert to fraction form
    27,286.40/40,945.31 = 11,490.20/x
  3. Step 3: Cross multiply
    27,286.40x = 40,945.31 × 11,490.20
  4. Step 4: Simplify right side
    27,286.40x = 470,469,624.96
  5. Step 5: Solve for x
    x = 470,469,624.96/27,286.40
  6. Step 6: Final answer
    x = 17,241.91

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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.