Home / 31,723.67-43,778.57-18,294.90

Finding the Fourth Proportional to 31,723.67, 43,778.57 and 18,294.90

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Solution

The fourth proportional to 31,723.67, 43,778.57 and 18,294.90 is: 25,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.67 : 43,778.57 = 18,294.90 : x
  2. Step 2: Convert to fraction form
    31,723.67/43,778.57 = 18,294.90/x
  3. Step 3: Cross multiply
    31,723.67x = 43,778.57 × 18,294.90
  4. Step 4: Simplify right side
    31,723.67x = 800,924,468.82
  5. Step 5: Solve for x
    x = 800,924,468.82/31,723.67
  6. Step 6: Final answer
    x = 25,246.91

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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.