Home / 20,702.22-30,957.94-15,375.45

Finding the Fourth Proportional to 20,702.22, 30,957.94 and 15,375.45

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Solution

The fourth proportional to 20,702.22, 30,957.94 and 15,375.45 is: 22,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.22 : 30,957.94 = 15,375.45 : x
  2. Step 2: Convert to fraction form
    20,702.22/30,957.94 = 15,375.45/x
  3. Step 3: Cross multiply
    20,702.22x = 30,957.94 × 15,375.45
  4. Step 4: Simplify right side
    20,702.22x = 475,992,258.57
  5. Step 5: Solve for x
    x = 475,992,258.57/20,702.22
  6. Step 6: Final answer
    x = 22,992.33

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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.