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Finding the Fourth Proportional to 17,950, 26,929.36 and 5,638

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Solution

The fourth proportional to 17,950, 26,929.36 and 5,638 is: 8,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,950 : 26,929.36 = 5,638 : x
  2. Step 2: Convert to fraction form
    17,950/26,929.36 = 5,638/x
  3. Step 3: Cross multiply
    17,950x = 26,929.36 × 5,638
  4. Step 4: Simplify right side
    17,950x = 151,827,731.68
  5. Step 5: Solve for x
    x = 151,827,731.68/17,950
  6. Step 6: Final answer
    x = 8,458.37

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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.