Home / 31,723.54-43,778.45-18,294.62

Finding the Fourth Proportional to 31,723.54, 43,778.45 and 18,294.62

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Solution

The fourth proportional to 31,723.54, 43,778.45 and 18,294.62 is: 25,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.54 : 43,778.45 = 18,294.62 : x
  2. Step 2: Convert to fraction form
    31,723.54/43,778.45 = 18,294.62/x
  3. Step 3: Cross multiply
    31,723.54x = 43,778.45 × 18,294.62
  4. Step 4: Simplify right side
    31,723.54x = 800,909,933.78
  5. Step 5: Solve for x
    x = 800,909,933.78/31,723.54
  6. Step 6: Final answer
    x = 25,246.55

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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.