Home / 20,011.82-27,617.62-13,286.92

Finding the Fourth Proportional to 20,011.82, 27,617.62 and 13,286.92

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Solution

The fourth proportional to 20,011.82, 27,617.62 and 13,286.92 is: 18,336.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.82 : 27,617.62 = 13,286.92 : x
  2. Step 2: Convert to fraction form
    20,011.82/27,617.62 = 13,286.92/x
  3. Step 3: Cross multiply
    20,011.82x = 27,617.62 × 13,286.92
  4. Step 4: Simplify right side
    20,011.82x = 366,953,107.53
  5. Step 5: Solve for x
    x = 366,953,107.53/20,011.82
  6. Step 6: Final answer
    x = 18,336.82

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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.