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Finding the Fourth Proportional to 17,061.74, 23,551.62 and 9,990.44

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Solution

The fourth proportional to 17,061.74, 23,551.62 and 9,990.44 is: 13,790.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,061.74 : 23,551.62 = 9,990.44 : x
  2. Step 2: Convert to fraction form
    17,061.74/23,551.62 = 9,990.44/x
  3. Step 3: Cross multiply
    17,061.74x = 23,551.62 × 9,990.44
  4. Step 4: Simplify right side
    17,061.74x = 235,291,046.51
  5. Step 5: Solve for x
    x = 235,291,046.51/17,061.74
  6. Step 6: Final answer
    x = 13,790.57

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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.