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Finding the Fourth Proportional to 36,715, 50,671.02 and 21,811

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Solution

The fourth proportional to 36,715, 50,671.02 and 21,811 is: 30,101.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,715 : 50,671.02 = 21,811 : x
  2. Step 2: Convert to fraction form
    36,715/50,671.02 = 21,811/x
  3. Step 3: Cross multiply
    36,715x = 50,671.02 × 21,811
  4. Step 4: Simplify right side
    36,715x = 1,105,185,617.22
  5. Step 5: Solve for x
    x = 1,105,185,617.22/36,715
  6. Step 6: Final answer
    x = 30,101.75

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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.