Home / 31,418.25-43,357.23-17,270.79

Finding the Fourth Proportional to 31,418.25, 43,357.23 and 17,270.79

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Solution

The fourth proportional to 31,418.25, 43,357.23 and 17,270.79 is: 23,833.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.25 : 43,357.23 = 17,270.79 : x
  2. Step 2: Convert to fraction form
    31,418.25/43,357.23 = 17,270.79/x
  3. Step 3: Cross multiply
    31,418.25x = 43,357.23 × 17,270.79
  4. Step 4: Simplify right side
    31,418.25x = 748,813,614.31
  5. Step 5: Solve for x
    x = 748,813,614.31/31,418.25
  6. Step 6: Final answer
    x = 23,833.71

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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.