Home / 31,791.24-43,869.87-19,853.87

Finding the Fourth Proportional to 31,791.24, 43,869.87 and 19,853.87

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Solution

The fourth proportional to 31,791.24, 43,869.87 and 19,853.87 is: 27,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,791.24 : 43,869.87 = 19,853.87 : x
  2. Step 2: Convert to fraction form
    31,791.24/43,869.87 = 19,853.87/x
  3. Step 3: Cross multiply
    31,791.24x = 43,869.87 × 19,853.87
  4. Step 4: Simplify right side
    31,791.24x = 870,986,476.55
  5. Step 5: Solve for x
    x = 870,986,476.55/31,791.24
  6. Step 6: Final answer
    x = 27,397.06

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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.