Home / 27,720.30-41,580.45-7,997.10

Finding the Fourth Proportional to 27,720.30, 41,580.45 and 7,997.10

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Solution

The fourth proportional to 27,720.30, 41,580.45 and 7,997.10 is: 11,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,720.30 : 41,580.45 = 7,997.10 : x
  2. Step 2: Convert to fraction form
    27,720.30/41,580.45 = 7,997.10/x
  3. Step 3: Cross multiply
    27,720.30x = 41,580.45 × 7,997.10
  4. Step 4: Simplify right side
    27,720.30x = 332,523,016.70
  5. Step 5: Solve for x
    x = 332,523,016.70/27,720.30
  6. Step 6: Final answer
    x = 11,995.65

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Double scale
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Similar ratio
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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.