Home / 20,286.14-30,383.84-11,727.10

Finding the Fourth Proportional to 20,286.14, 30,383.84 and 11,727.10

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Solution

The fourth proportional to 20,286.14, 30,383.84 and 11,727.10 is: 17,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.14 : 30,383.84 = 11,727.10 : x
  2. Step 2: Convert to fraction form
    20,286.14/30,383.84 = 11,727.10/x
  3. Step 3: Cross multiply
    20,286.14x = 30,383.84 × 11,727.10
  4. Step 4: Simplify right side
    20,286.14x = 356,314,353.38
  5. Step 5: Solve for x
    x = 356,314,353.38/20,286.14
  6. Step 6: Final answer
    x = 17,564.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.