Home / 39,853.52-54,997.19-21,950.19

Finding the Fourth Proportional to 39,853.52, 54,997.19 and 21,950.19

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Solution

The fourth proportional to 39,853.52, 54,997.19 and 21,950.19 is: 30,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,853.52 : 54,997.19 = 21,950.19 : x
  2. Step 2: Convert to fraction form
    39,853.52/54,997.19 = 21,950.19/x
  3. Step 3: Cross multiply
    39,853.52x = 54,997.19 × 21,950.19
  4. Step 4: Simplify right side
    39,853.52x = 1,207,198,660.22
  5. Step 5: Solve for x
    x = 1,207,198,660.22/39,853.52
  6. Step 6: Final answer
    x = 30,290.90

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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.