Home / 31,711.82-43,761.87-18,283.10

Finding the Fourth Proportional to 31,711.82, 43,761.87 and 18,283.10

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Solution

The fourth proportional to 31,711.82, 43,761.87 and 18,283.10 is: 25,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.82 : 43,761.87 = 18,283.10 : x
  2. Step 2: Convert to fraction form
    31,711.82/43,761.87 = 18,283.10/x
  3. Step 3: Cross multiply
    31,711.82x = 43,761.87 × 18,283.10
  4. Step 4: Simplify right side
    31,711.82x = 800,102,645.40
  5. Step 5: Solve for x
    x = 800,102,645.40/31,711.82
  6. Step 6: Final answer
    x = 25,230.42

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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.