Home / 20,180.19-27,847.89-11,227.41

Finding the Fourth Proportional to 20,180.19, 27,847.89 and 11,227.41

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Solution

The fourth proportional to 20,180.19, 27,847.89 and 11,227.41 is: 15,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.19 : 27,847.89 = 11,227.41 : x
  2. Step 2: Convert to fraction form
    20,180.19/27,847.89 = 11,227.41/x
  3. Step 3: Cross multiply
    20,180.19x = 27,847.89 × 11,227.41
  4. Step 4: Simplify right side
    20,180.19x = 312,659,678.66
  5. Step 5: Solve for x
    x = 312,659,678.66/20,180.19
  6. Step 6: Final answer
    x = 15,493.40

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Half scale
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Double scale
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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.