Home / 20,094.36-27,729.74-11,141.76

Finding the Fourth Proportional to 20,094.36, 27,729.74 and 11,141.76

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Solution

The fourth proportional to 20,094.36, 27,729.74 and 11,141.76 is: 15,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.36 : 27,729.74 = 11,141.76 : x
  2. Step 2: Convert to fraction form
    20,094.36/27,729.74 = 11,141.76/x
  3. Step 3: Cross multiply
    20,094.36x = 27,729.74 × 11,141.76
  4. Step 4: Simplify right side
    20,094.36x = 308,958,107.94
  5. Step 5: Solve for x
    x = 308,958,107.94/20,094.36
  6. Step 6: Final answer
    x = 15,375.36

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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.