Home / 31,871.10-43,981.35-17,334.91

Finding the Fourth Proportional to 31,871.10, 43,981.35 and 17,334.91

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Solution

The fourth proportional to 31,871.10, 43,981.35 and 17,334.91 is: 23,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,871.10 : 43,981.35 = 17,334.91 : x
  2. Step 2: Convert to fraction form
    31,871.10/43,981.35 = 17,334.91/x
  3. Step 3: Cross multiply
    31,871.10x = 43,981.35 × 17,334.91
  4. Step 4: Simplify right side
    31,871.10x = 762,412,743.93
  5. Step 5: Solve for x
    x = 762,412,743.93/31,871.10
  6. Step 6: Final answer
    x = 23,921.76

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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.