Home / 20,243.26-27,935.74-11,168.42

Finding the Fourth Proportional to 20,243.26, 27,935.74 and 11,168.42

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Solution

The fourth proportional to 20,243.26, 27,935.74 and 11,168.42 is: 15,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.26 : 27,935.74 = 11,168.42 : x
  2. Step 2: Convert to fraction form
    20,243.26/27,935.74 = 11,168.42/x
  3. Step 3: Cross multiply
    20,243.26x = 27,935.74 × 11,168.42
  4. Step 4: Simplify right side
    20,243.26x = 311,998,077.33
  5. Step 5: Solve for x
    x = 311,998,077.33/20,243.26
  6. Step 6: Final answer
    x = 15,412.44

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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.