Home / 18,481.50-27,722.25-5,331.96

Finding the Fourth Proportional to 18,481.50, 27,722.25 and 5,331.96

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Solution

The fourth proportional to 18,481.50, 27,722.25 and 5,331.96 is: 7,997.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.50 : 27,722.25 = 5,331.96 : x
  2. Step 2: Convert to fraction form
    18,481.50/27,722.25 = 5,331.96/x
  3. Step 3: Cross multiply
    18,481.50x = 27,722.25 × 5,331.96
  4. Step 4: Simplify right side
    18,481.50x = 147,813,928.11
  5. Step 5: Solve for x
    x = 147,813,928.11/18,481.50
  6. Step 6: Final answer
    x = 7,997.94

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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.