Home / 31,162.88-43,004.52-17,015.72

Finding the Fourth Proportional to 31,162.88, 43,004.52 and 17,015.72

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Solution

The fourth proportional to 31,162.88, 43,004.52 and 17,015.72 is: 23,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,162.88 : 43,004.52 = 17,015.72 : x
  2. Step 2: Convert to fraction form
    31,162.88/43,004.52 = 17,015.72/x
  3. Step 3: Cross multiply
    31,162.88x = 43,004.52 × 17,015.72
  4. Step 4: Simplify right side
    31,162.88x = 731,752,871.05
  5. Step 5: Solve for x
    x = 731,752,871.05/31,162.88
  6. Step 6: Final answer
    x = 23,481.55

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1.5x scale

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.