Home / 20,093.75-27,729.24-11,141.25

Finding the Fourth Proportional to 20,093.75, 27,729.24 and 11,141.25

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Solution

The fourth proportional to 20,093.75, 27,729.24 and 11,141.25 is: 15,374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.75 : 27,729.24 = 11,141.25 : x
  2. Step 2: Convert to fraction form
    20,093.75/27,729.24 = 11,141.25/x
  3. Step 3: Cross multiply
    20,093.75x = 27,729.24 × 11,141.25
  4. Step 4: Simplify right side
    20,093.75x = 308,938,395.15
  5. Step 5: Solve for x
    x = 308,938,395.15/20,093.75
  6. Step 6: Final answer
    x = 15,374.85

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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.