Home / 20,094.36-27,729.80-11,141.70

Finding the Fourth Proportional to 20,094.36, 27,729.80 and 11,141.70

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Solution

The fourth proportional to 20,094.36, 27,729.80 and 11,141.70 is: 15,375.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.36 : 27,729.80 = 11,141.70 : x
  2. Step 2: Convert to fraction form
    20,094.36/27,729.80 = 11,141.70/x
  3. Step 3: Cross multiply
    20,094.36x = 27,729.80 × 11,141.70
  4. Step 4: Simplify right side
    20,094.36x = 308,957,112.66
  5. Step 5: Solve for x
    x = 308,957,112.66/20,094.36
  6. Step 6: Final answer
    x = 15,375.31

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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.