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Finding the Fourth Proportional to 36,270, 50,052.78 and 21,173.04

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Solution

The fourth proportional to 36,270, 50,052.78 and 21,173.04 is: 29,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,270 : 50,052.78 = 21,173.04 : x
  2. Step 2: Convert to fraction form
    36,270/50,052.78 = 21,173.04/x
  3. Step 3: Cross multiply
    36,270x = 50,052.78 × 21,173.04
  4. Step 4: Simplify right side
    36,270x = 1,059,769,513.05
  5. Step 5: Solve for x
    x = 1,059,769,513.05/36,270
  6. Step 6: Final answer
    x = 29,218.90

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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.