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Finding the Fourth Proportional to 36,696, 50,640.48 and 21,792

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Solution

The fourth proportional to 36,696, 50,640.48 and 21,792 is: 30,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,696 : 50,640.48 = 21,792 : x
  2. Step 2: Convert to fraction form
    36,696/50,640.48 = 21,792/x
  3. Step 3: Cross multiply
    36,696x = 50,640.48 × 21,792
  4. Step 4: Simplify right side
    36,696x = 1,103,557,340.16
  5. Step 5: Solve for x
    x = 1,103,557,340.16/36,696
  6. Step 6: Final answer
    x = 30,072.96

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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.