Home / 26,881.20-40,322.70-7,161.75

Finding the Fourth Proportional to 26,881.20, 40,322.70 and 7,161.75

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Solution

The fourth proportional to 26,881.20, 40,322.70 and 7,161.75 is: 10,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.20 : 40,322.70 = 7,161.75 : x
  2. Step 2: Convert to fraction form
    26,881.20/40,322.70 = 7,161.75/x
  3. Step 3: Cross multiply
    26,881.20x = 40,322.70 × 7,161.75
  4. Step 4: Simplify right side
    26,881.20x = 288,781,096.73
  5. Step 5: Solve for x
    x = 288,781,096.73/26,881.20
  6. Step 6: Final answer
    x = 10,742.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.