Home / 31,717.51-43,774.82-18,286.13

Finding the Fourth Proportional to 31,717.51, 43,774.82 and 18,286.13

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Solution

The fourth proportional to 31,717.51, 43,774.82 and 18,286.13 is: 25,237.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,717.51 : 43,774.82 = 18,286.13 : x
  2. Step 2: Convert to fraction form
    31,717.51/43,774.82 = 18,286.13/x
  3. Step 3: Cross multiply
    31,717.51x = 43,774.82 × 18,286.13
  4. Step 4: Simplify right side
    31,717.51x = 800,472,190.54
  5. Step 5: Solve for x
    x = 800,472,190.54/31,717.51
  6. Step 6: Final answer
    x = 25,237.55

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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.