Home / 20,171.82-27,836.95-11,096.98

Finding the Fourth Proportional to 20,171.82, 27,836.95 and 11,096.98

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Solution

The fourth proportional to 20,171.82, 27,836.95 and 11,096.98 is: 15,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.82 : 27,836.95 = 11,096.98 : x
  2. Step 2: Convert to fraction form
    20,171.82/27,836.95 = 11,096.98/x
  3. Step 3: Cross multiply
    20,171.82x = 27,836.95 × 11,096.98
  4. Step 4: Simplify right side
    20,171.82x = 308,906,021.93
  5. Step 5: Solve for x
    x = 308,906,021.93/20,171.82
  6. Step 6: Final answer
    x = 15,313.74

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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.