Home / 20,706.44-31,197.96-18,734.59

Finding the Fourth Proportional to 20,706.44, 31,197.96 and 18,734.59

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Solution

The fourth proportional to 20,706.44, 31,197.96 and 18,734.59 is: 28,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.44 : 31,197.96 = 18,734.59 : x
  2. Step 2: Convert to fraction form
    20,706.44/31,197.96 = 18,734.59/x
  3. Step 3: Cross multiply
    20,706.44x = 31,197.96 × 18,734.59
  4. Step 4: Simplify right side
    20,706.44x = 584,481,028.43
  5. Step 5: Solve for x
    x = 584,481,028.43/20,706.44
  6. Step 6: Final answer
    x = 28,227.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.