Home / 20,243.28-27,936.39-11,291.16

Finding the Fourth Proportional to 20,243.28, 27,936.39 and 11,291.16

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Solution

The fourth proportional to 20,243.28, 27,936.39 and 11,291.16 is: 15,582.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.28 : 27,936.39 = 11,291.16 : x
  2. Step 2: Convert to fraction form
    20,243.28/27,936.39 = 11,291.16/x
  3. Step 3: Cross multiply
    20,243.28x = 27,936.39 × 11,291.16
  4. Step 4: Simplify right side
    20,243.28x = 315,434,249.31
  5. Step 5: Solve for x
    x = 315,434,249.31/20,243.28
  6. Step 6: Final answer
    x = 15,582.17

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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.