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Finding the Fourth Proportional to 36,576, 50,487.84 and 21,672

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Solution

The fourth proportional to 36,576, 50,487.84 and 21,672 is: 29,915.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,576 : 50,487.84 = 21,672 : x
  2. Step 2: Convert to fraction form
    36,576/50,487.84 = 21,672/x
  3. Step 3: Cross multiply
    36,576x = 50,487.84 × 21,672
  4. Step 4: Simplify right side
    36,576x = 1,094,172,468.48
  5. Step 5: Solve for x
    x = 1,094,172,468.48/36,576
  6. Step 6: Final answer
    x = 29,915.04

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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.