Home / 20,757.33-28,645.75-11,806.12

Finding the Fourth Proportional to 20,757.33, 28,645.75 and 11,806.12

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Solution

The fourth proportional to 20,757.33, 28,645.75 and 11,806.12 is: 16,292.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.33 : 28,645.75 = 11,806.12 : x
  2. Step 2: Convert to fraction form
    20,757.33/28,645.75 = 11,806.12/x
  3. Step 3: Cross multiply
    20,757.33x = 28,645.75 × 11,806.12
  4. Step 4: Simplify right side
    20,757.33x = 338,195,102.96
  5. Step 5: Solve for x
    x = 338,195,102.96/20,757.33
  6. Step 6: Final answer
    x = 16,292.81

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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.