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Finding the Fourth Proportional to 36,888, 50,906.88 and 21,992.64

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Solution

The fourth proportional to 36,888, 50,906.88 and 21,992.64 is: 30,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,888 : 50,906.88 = 21,992.64 : x
  2. Step 2: Convert to fraction form
    36,888/50,906.88 = 21,992.64/x
  3. Step 3: Cross multiply
    36,888x = 50,906.88 × 21,992.64
  4. Step 4: Simplify right side
    36,888x = 1,119,576,685.36
  5. Step 5: Solve for x
    x = 1,119,576,685.36/36,888
  6. Step 6: Final answer
    x = 30,350.70

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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.