Home / 27,775.92-38,330.62-15,200.64

Finding the Fourth Proportional to 27,775.92, 38,330.62 and 15,200.64

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Solution

The fourth proportional to 27,775.92, 38,330.62 and 15,200.64 is: 20,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.92 : 38,330.62 = 15,200.64 : x
  2. Step 2: Convert to fraction form
    27,775.92/38,330.62 = 15,200.64/x
  3. Step 3: Cross multiply
    27,775.92x = 38,330.62 × 15,200.64
  4. Step 4: Simplify right side
    27,775.92x = 582,649,955.60
  5. Step 5: Solve for x
    x = 582,649,955.60/27,775.92
  6. Step 6: Final answer
    x = 20,976.80

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.