Home / 20,192.39-27,866.31-11,239.32

Finding the Fourth Proportional to 20,192.39, 27,866.31 and 11,239.32

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Solution

The fourth proportional to 20,192.39, 27,866.31 and 11,239.32 is: 15,510.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.39 : 27,866.31 = 11,239.32 : x
  2. Step 2: Convert to fraction form
    20,192.39/27,866.31 = 11,239.32/x
  3. Step 3: Cross multiply
    20,192.39x = 27,866.31 × 11,239.32
  4. Step 4: Simplify right side
    20,192.39x = 313,198,375.31
  5. Step 5: Solve for x
    x = 313,198,375.31/20,192.39
  6. Step 6: Final answer
    x = 15,510.72

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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.