Home / 20,083.94-27,716.78-11,131.64

Finding the Fourth Proportional to 20,083.94, 27,716.78 and 11,131.64

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Solution

The fourth proportional to 20,083.94, 27,716.78 and 11,131.64 is: 15,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.94 : 27,716.78 = 11,131.64 : x
  2. Step 2: Convert to fraction form
    20,083.94/27,716.78 = 11,131.64/x
  3. Step 3: Cross multiply
    20,083.94x = 27,716.78 × 11,131.64
  4. Step 4: Simplify right side
    20,083.94x = 308,533,230.55
  5. Step 5: Solve for x
    x = 308,533,230.55/20,083.94
  6. Step 6: Final answer
    x = 15,362.18

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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.