Home / 20,824.89-28,738.58-11,264.97

Finding the Fourth Proportional to 20,824.89, 28,738.58 and 11,264.97

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Solution

The fourth proportional to 20,824.89, 28,738.58 and 11,264.97 is: 15,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.89 : 28,738.58 = 11,264.97 : x
  2. Step 2: Convert to fraction form
    20,824.89/28,738.58 = 11,264.97/x
  3. Step 3: Cross multiply
    20,824.89x = 28,738.58 × 11,264.97
  4. Step 4: Simplify right side
    20,824.89x = 323,739,241.54
  5. Step 5: Solve for x
    x = 323,739,241.54/20,824.89
  6. Step 6: Final answer
    x = 15,545.78

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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.