Home / 31,326.88-43,231.53-17,178.79

Finding the Fourth Proportional to 31,326.88, 43,231.53 and 17,178.79

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Solution

The fourth proportional to 31,326.88, 43,231.53 and 17,178.79 is: 23,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,326.88 : 43,231.53 = 17,178.79 : x
  2. Step 2: Convert to fraction form
    31,326.88/43,231.53 = 17,178.79/x
  3. Step 3: Cross multiply
    31,326.88x = 43,231.53 × 17,178.79
  4. Step 4: Simplify right side
    31,326.88x = 742,665,375.25
  5. Step 5: Solve for x
    x = 742,665,375.25/31,326.88
  6. Step 6: Final answer
    x = 23,706.97

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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.