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Finding the Fourth Proportional to 17,015.88, 23,481.99 and 9,940.80

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Solution

The fourth proportional to 17,015.88, 23,481.99 and 9,940.80 is: 13,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,015.88 : 23,481.99 = 9,940.80 : x
  2. Step 2: Convert to fraction form
    17,015.88/23,481.99 = 9,940.80/x
  3. Step 3: Cross multiply
    17,015.88x = 23,481.99 × 9,940.80
  4. Step 4: Simplify right side
    17,015.88x = 233,429,766.19
  5. Step 5: Solve for x
    x = 233,429,766.19/17,015.88
  6. Step 6: Final answer
    x = 13,718.35

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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.