Home / 20,944.33-28,902.49-11,512.29

Finding the Fourth Proportional to 20,944.33, 28,902.49 and 11,512.29

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Solution

The fourth proportional to 20,944.33, 28,902.49 and 11,512.29 is: 15,886.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.33 : 28,902.49 = 11,512.29 : x
  2. Step 2: Convert to fraction form
    20,944.33/28,902.49 = 11,512.29/x
  3. Step 3: Cross multiply
    20,944.33x = 28,902.49 × 11,512.29
  4. Step 4: Simplify right side
    20,944.33x = 332,733,846.60
  5. Step 5: Solve for x
    x = 332,733,846.60/20,944.33
  6. Step 6: Final answer
    x = 15,886.58

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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.