Home / 31,540.54-43,524.48-18,112.90

Finding the Fourth Proportional to 31,540.54, 43,524.48 and 18,112.90

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Solution

The fourth proportional to 31,540.54, 43,524.48 and 18,112.90 is: 24,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.54 : 43,524.48 = 18,112.90 : x
  2. Step 2: Convert to fraction form
    31,540.54/43,524.48 = 18,112.90/x
  3. Step 3: Cross multiply
    31,540.54x = 43,524.48 × 18,112.90
  4. Step 4: Simplify right side
    31,540.54x = 788,354,553.79
  5. Step 5: Solve for x
    x = 788,354,553.79/31,540.54
  6. Step 6: Final answer
    x = 24,994.96

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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.