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Finding the Fourth Proportional to 30,425.92, 41,987.31 and 16,997.37

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Solution

The fourth proportional to 30,425.92, 41,987.31 and 16,997.37 is: 23,456.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.92 : 41,987.31 = 16,997.37 : x
  2. Step 2: Convert to fraction form
    30,425.92/41,987.31 = 16,997.37/x
  3. Step 3: Cross multiply
    30,425.92x = 41,987.31 × 16,997.37
  4. Step 4: Simplify right side
    30,425.92x = 713,673,843.37
  5. Step 5: Solve for x
    x = 713,673,843.37/30,425.92
  6. Step 6: Final answer
    x = 23,456.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.