Home / 39,711.33-54,800.82-21,806.28

Finding the Fourth Proportional to 39,711.33, 54,800.82 and 21,806.28

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Solution

The fourth proportional to 39,711.33, 54,800.82 and 21,806.28 is: 30,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.33 : 54,800.82 = 21,806.28 : x
  2. Step 2: Convert to fraction form
    39,711.33/54,800.82 = 21,806.28/x
  3. Step 3: Cross multiply
    39,711.33x = 54,800.82 × 21,806.28
  4. Step 4: Simplify right side
    39,711.33x = 1,195,002,025.15
  5. Step 5: Solve for x
    x = 1,195,002,025.15/39,711.33
  6. Step 6: Final answer
    x = 30,092.22

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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.