Home / 39,192.36-54,083.92-21,286.96

Finding the Fourth Proportional to 39,192.36, 54,083.92 and 21,286.96

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Solution

The fourth proportional to 39,192.36, 54,083.92 and 21,286.96 is: 29,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192.36 : 54,083.92 = 21,286.96 : x
  2. Step 2: Convert to fraction form
    39,192.36/54,083.92 = 21,286.96/x
  3. Step 3: Cross multiply
    39,192.36x = 54,083.92 × 21,286.96
  4. Step 4: Simplify right side
    39,192.36x = 1,151,282,241.68
  5. Step 5: Solve for x
    x = 1,151,282,241.68/39,192.36
  6. Step 6: Final answer
    x = 29,375.17

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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.