Home / 31,687.38-43,720.29-19,103.22

Finding the Fourth Proportional to 31,687.38, 43,720.29 and 19,103.22

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Solution

The fourth proportional to 31,687.38, 43,720.29 and 19,103.22 is: 26,357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,687.38 : 43,720.29 = 19,103.22 : x
  2. Step 2: Convert to fraction form
    31,687.38/43,720.29 = 19,103.22/x
  3. Step 3: Cross multiply
    31,687.38x = 43,720.29 × 19,103.22
  4. Step 4: Simplify right side
    31,687.38x = 835,198,318.33
  5. Step 5: Solve for x
    x = 835,198,318.33/31,687.38
  6. Step 6: Final answer
    x = 26,357.44

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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.