Home / 31,749.33-43,821.90-18,839.55

Finding the Fourth Proportional to 31,749.33, 43,821.90 and 18,839.55

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Solution

The fourth proportional to 31,749.33, 43,821.90 and 18,839.55 is: 26,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.33 : 43,821.90 = 18,839.55 : x
  2. Step 2: Convert to fraction form
    31,749.33/43,821.90 = 18,839.55/x
  3. Step 3: Cross multiply
    31,749.33x = 43,821.90 × 18,839.55
  4. Step 4: Simplify right side
    31,749.33x = 825,584,876.15
  5. Step 5: Solve for x
    x = 825,584,876.15/31,749.33
  6. Step 6: Final answer
    x = 26,003.22

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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.