Home / 39,796.19-54,917.39-21,891.03

Finding the Fourth Proportional to 39,796.19, 54,917.39 and 21,891.03

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Solution

The fourth proportional to 39,796.19, 54,917.39 and 21,891.03 is: 30,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796.19 : 54,917.39 = 21,891.03 : x
  2. Step 2: Convert to fraction form
    39,796.19/54,917.39 = 21,891.03/x
  3. Step 3: Cross multiply
    39,796.19x = 54,917.39 × 21,891.03
  4. Step 4: Simplify right side
    39,796.19x = 1,202,198,544.16
  5. Step 5: Solve for x
    x = 1,202,198,544.16/39,796.19
  6. Step 6: Final answer
    x = 30,208.89

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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.