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Finding the Fourth Proportional to 18,231.33, 25,165.49 and 10,680.08

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Solution

The fourth proportional to 18,231.33, 25,165.49 and 10,680.08 is: 14,742.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.33 : 25,165.49 = 10,680.08 : x
  2. Step 2: Convert to fraction form
    18,231.33/25,165.49 = 10,680.08/x
  3. Step 3: Cross multiply
    18,231.33x = 25,165.49 × 10,680.08
  4. Step 4: Simplify right side
    18,231.33x = 268,769,455.95
  5. Step 5: Solve for x
    x = 268,769,455.95/18,231.33
  6. Step 6: Final answer
    x = 14,742.17

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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.