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Finding the Fourth Proportional to 20,192.65, 27,865.24 and 11,239.92

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Solution

The fourth proportional to 20,192.65, 27,865.24 and 11,239.92 is: 15,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.65 : 27,865.24 = 11,239.92 : x
  2. Step 2: Convert to fraction form
    20,192.65/27,865.24 = 11,239.92/x
  3. Step 3: Cross multiply
    20,192.65x = 27,865.24 × 11,239.92
  4. Step 4: Simplify right side
    20,192.65x = 313,203,081.84
  5. Step 5: Solve for x
    x = 313,203,081.84/20,192.65
  6. Step 6: Final answer
    x = 15,510.75

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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.