Home / 20,084.15-27,716.34-11,131.82

Finding the Fourth Proportional to 20,084.15, 27,716.34 and 11,131.82

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Solution

The fourth proportional to 20,084.15, 27,716.34 and 11,131.82 is: 15,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,084.15 : 27,716.34 = 11,131.82 : x
  2. Step 2: Convert to fraction form
    20,084.15/27,716.34 = 11,131.82/x
  3. Step 3: Cross multiply
    20,084.15x = 27,716.34 × 11,131.82
  4. Step 4: Simplify right side
    20,084.15x = 308,533,169.36
  5. Step 5: Solve for x
    x = 308,533,169.36/20,084.15
  6. Step 6: Final answer
    x = 15,362.03

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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.