Home / 39,675.36-54,755.47-21,773.82

Finding the Fourth Proportional to 39,675.36, 54,755.47 and 21,773.82

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Solution

The fourth proportional to 39,675.36, 54,755.47 and 21,773.82 is: 30,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,675.36 : 54,755.47 = 21,773.82 : x
  2. Step 2: Convert to fraction form
    39,675.36/54,755.47 = 21,773.82/x
  3. Step 3: Cross multiply
    39,675.36x = 54,755.47 × 21,773.82
  4. Step 4: Simplify right side
    39,675.36x = 1,192,235,857.87
  5. Step 5: Solve for x
    x = 1,192,235,857.87/39,675.36
  6. Step 6: Final answer
    x = 30,049.78

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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.