Home / 39,679.82-54,755.96-21,773.41

Finding the Fourth Proportional to 39,679.82, 54,755.96 and 21,773.41

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Solution

The fourth proportional to 39,679.82, 54,755.96 and 21,773.41 is: 30,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,679.82 : 54,755.96 = 21,773.41 : x
  2. Step 2: Convert to fraction form
    39,679.82/54,755.96 = 21,773.41/x
  3. Step 3: Cross multiply
    39,679.82x = 54,755.96 × 21,773.41
  4. Step 4: Simplify right side
    39,679.82x = 1,192,223,884.57
  5. Step 5: Solve for x
    x = 1,192,223,884.57/39,679.82
  6. Step 6: Final answer
    x = 30,046.10

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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.