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Finding the Fourth Proportional to 47,801.24, 71,700.24 and 18,218

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Solution

The fourth proportional to 47,801.24, 71,700.24 and 18,218 is: 27,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,801.24 : 71,700.24 = 18,218 : x
  2. Step 2: Convert to fraction form
    47,801.24/71,700.24 = 18,218/x
  3. Step 3: Cross multiply
    47,801.24x = 71,700.24 × 18,218
  4. Step 4: Simplify right side
    47,801.24x = 1,306,234,972.32
  5. Step 5: Solve for x
    x = 1,306,234,972.32/47,801.24
  6. Step 6: Final answer
    x = 27,326.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.