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Finding the Fourth Proportional to 20,099, 27,736.62 and 11,713.88

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Solution

The fourth proportional to 20,099, 27,736.62 and 11,713.88 is: 16,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099 : 27,736.62 = 11,713.88 : x
  2. Step 2: Convert to fraction form
    20,099/27,736.62 = 11,713.88/x
  3. Step 3: Cross multiply
    20,099x = 27,736.62 × 11,713.88
  4. Step 4: Simplify right side
    20,099x = 324,903,438.29
  5. Step 5: Solve for x
    x = 324,903,438.29/20,099
  6. Step 6: Final answer
    x = 16,165.15

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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.