Home / 31,514.40-43,489.31-17,174.36

Finding the Fourth Proportional to 31,514.40, 43,489.31 and 17,174.36

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Solution

The fourth proportional to 31,514.40, 43,489.31 and 17,174.36 is: 23,700.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,514.40 : 43,489.31 = 17,174.36 : x
  2. Step 2: Convert to fraction form
    31,514.40/43,489.31 = 17,174.36/x
  3. Step 3: Cross multiply
    31,514.40x = 43,489.31 × 17,174.36
  4. Step 4: Simplify right side
    31,514.40x = 746,901,066.09
  5. Step 5: Solve for x
    x = 746,901,066.09/31,514.40
  6. Step 6: Final answer
    x = 23,700.31

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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.