Home / 19,614.75-27,072-11,231.25

Finding the Fourth Proportional to 19,614.75, 27,072 and 11,231.25

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Solution

The fourth proportional to 19,614.75, 27,072 and 11,231.25 is: 15,501.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.75 : 27,072 = 11,231.25 : x
  2. Step 2: Convert to fraction form
    19,614.75/27,072 = 11,231.25/x
  3. Step 3: Cross multiply
    19,614.75x = 27,072 × 11,231.25
  4. Step 4: Simplify right side
    19,614.75x = 304,052,400
  5. Step 5: Solve for x
    x = 304,052,400/19,614.75
  6. Step 6: Final answer
    x = 15,501.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.