Home / 31,711.65-43,766.36-18,282.66

Finding the Fourth Proportional to 31,711.65, 43,766.36 and 18,282.66

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Solution

The fourth proportional to 31,711.65, 43,766.36 and 18,282.66 is: 25,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.65 : 43,766.36 = 18,282.66 : x
  2. Step 2: Convert to fraction form
    31,711.65/43,766.36 = 18,282.66/x
  3. Step 3: Cross multiply
    31,711.65x = 43,766.36 × 18,282.66
  4. Step 4: Simplify right side
    31,711.65x = 800,165,479.32
  5. Step 5: Solve for x
    x = 800,165,479.32/31,711.65
  6. Step 6: Final answer
    x = 25,232.54

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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.