Home / 31,450.44-43,407.18-18,876

Finding the Fourth Proportional to 31,450.44, 43,407.18 and 18,876

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Solution

The fourth proportional to 31,450.44, 43,407.18 and 18,876 is: 26,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.44 : 43,407.18 = 18,876 : x
  2. Step 2: Convert to fraction form
    31,450.44/43,407.18 = 18,876/x
  3. Step 3: Cross multiply
    31,450.44x = 43,407.18 × 18,876
  4. Step 4: Simplify right side
    31,450.44x = 819,353,929.68
  5. Step 5: Solve for x
    x = 819,353,929.68/31,450.44
  6. Step 6: Final answer
    x = 26,052.22

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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.