Home / 31,517.21-43,493.66-17,370.05

Finding the Fourth Proportional to 31,517.21, 43,493.66 and 17,370.05

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Solution

The fourth proportional to 31,517.21, 43,493.66 and 17,370.05 is: 23,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517.21 : 43,493.66 = 17,370.05 : x
  2. Step 2: Convert to fraction form
    31,517.21/43,493.66 = 17,370.05/x
  3. Step 3: Cross multiply
    31,517.21x = 43,493.66 × 17,370.05
  4. Step 4: Simplify right side
    31,517.21x = 755,486,744.56
  5. Step 5: Solve for x
    x = 755,486,744.56/31,517.21
  6. Step 6: Final answer
    x = 23,970.61

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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.