Home / 31,165.90-43,007.28-17,015.98

Finding the Fourth Proportional to 31,165.90, 43,007.28 and 17,015.98

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Solution

The fourth proportional to 31,165.90, 43,007.28 and 17,015.98 is: 23,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,165.90 : 43,007.28 = 17,015.98 : x
  2. Step 2: Convert to fraction form
    31,165.90/43,007.28 = 17,015.98/x
  3. Step 3: Cross multiply
    31,165.90x = 43,007.28 × 17,015.98
  4. Step 4: Simplify right side
    31,165.90x = 731,811,016.33
  5. Step 5: Solve for x
    x = 731,811,016.33/31,165.90
  6. Step 6: Final answer
    x = 23,481.14

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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.