Home / 31,550.75-43,540.07-18,124.60

Finding the Fourth Proportional to 31,550.75, 43,540.07 and 18,124.60

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Solution

The fourth proportional to 31,550.75, 43,540.07 and 18,124.60 is: 25,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.75 : 43,540.07 = 18,124.60 : x
  2. Step 2: Convert to fraction form
    31,550.75/43,540.07 = 18,124.60/x
  3. Step 3: Cross multiply
    31,550.75x = 43,540.07 × 18,124.60
  4. Step 4: Simplify right side
    31,550.75x = 789,146,352.72
  5. Step 5: Solve for x
    x = 789,146,352.72/31,550.75
  6. Step 6: Final answer
    x = 25,011.97

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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.