Home / 31,161.28-43,002-17,015.44

Finding the Fourth Proportional to 31,161.28, 43,002 and 17,015.44

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Solution

The fourth proportional to 31,161.28, 43,002 and 17,015.44 is: 23,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.28 : 43,002 = 17,015.44 : x
  2. Step 2: Convert to fraction form
    31,161.28/43,002 = 17,015.44/x
  3. Step 3: Cross multiply
    31,161.28x = 43,002 × 17,015.44
  4. Step 4: Simplify right side
    31,161.28x = 731,697,950.88
  5. Step 5: Solve for x
    x = 731,697,950.88/31,161.28
  6. Step 6: Final answer
    x = 23,481.00

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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.