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Finding the Fourth Proportional to 36,976.89, 51,028.11 and 20,209.89

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Solution

The fourth proportional to 36,976.89, 51,028.11 and 20,209.89 is: 27,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,976.89 : 51,028.11 = 20,209.89 : x
  2. Step 2: Convert to fraction form
    36,976.89/51,028.11 = 20,209.89/x
  3. Step 3: Cross multiply
    36,976.89x = 51,028.11 × 20,209.89
  4. Step 4: Simplify right side
    36,976.89x = 1,031,272,490.01
  5. Step 5: Solve for x
    x = 1,031,272,490.01/36,976.89
  6. Step 6: Final answer
    x = 27,889.65

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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.