Home / 20,227.21-27,913.91-11,273.75

Finding the Fourth Proportional to 20,227.21, 27,913.91 and 11,273.75

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Solution

The fourth proportional to 20,227.21, 27,913.91 and 11,273.75 is: 15,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.21 : 27,913.91 = 11,273.75 : x
  2. Step 2: Convert to fraction form
    20,227.21/27,913.91 = 11,273.75/x
  3. Step 3: Cross multiply
    20,227.21x = 27,913.91 × 11,273.75
  4. Step 4: Simplify right side
    20,227.21x = 314,694,348.21
  5. Step 5: Solve for x
    x = 314,694,348.21/20,227.21
  6. Step 6: Final answer
    x = 15,557.97

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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.