Home / 31,648.21-43,693.49-19,727.70

Finding the Fourth Proportional to 31,648.21, 43,693.49 and 19,727.70

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Solution

The fourth proportional to 31,648.21, 43,693.49 and 19,727.70 is: 27,236.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,648.21 : 43,693.49 = 19,727.70 : x
  2. Step 2: Convert to fraction form
    31,648.21/43,693.49 = 19,727.70/x
  3. Step 3: Cross multiply
    31,648.21x = 43,693.49 × 19,727.70
  4. Step 4: Simplify right side
    31,648.21x = 861,972,062.67
  5. Step 5: Solve for x
    x = 861,972,062.67/31,648.21
  6. Step 6: Final answer
    x = 27,236.04

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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.