Home / 19,872.89-27,424.54-11,375.04

Finding the Fourth Proportional to 19,872.89, 27,424.54 and 11,375.04

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Solution

The fourth proportional to 19,872.89, 27,424.54 and 11,375.04 is: 15,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.89 : 27,424.54 = 11,375.04 : x
  2. Step 2: Convert to fraction form
    19,872.89/27,424.54 = 11,375.04/x
  3. Step 3: Cross multiply
    19,872.89x = 27,424.54 × 11,375.04
  4. Step 4: Simplify right side
    19,872.89x = 311,955,239.48
  5. Step 5: Solve for x
    x = 311,955,239.48/19,872.89
  6. Step 6: Final answer
    x = 15,697.53

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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.