Home / 20,192.36-27,865.10-11,239.61

Finding the Fourth Proportional to 20,192.36, 27,865.10 and 11,239.61

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Solution

The fourth proportional to 20,192.36, 27,865.10 and 11,239.61 is: 15,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.36 : 27,865.10 = 11,239.61 : x
  2. Step 2: Convert to fraction form
    20,192.36/27,865.10 = 11,239.61/x
  3. Step 3: Cross multiply
    20,192.36x = 27,865.10 × 11,239.61
  4. Step 4: Simplify right side
    20,192.36x = 313,192,745.38
  5. Step 5: Solve for x
    x = 313,192,745.38/20,192.36
  6. Step 6: Final answer
    x = 15,510.46

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1.5x scale

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.