Home / 20,093.36-27,729.50-11,141.70

Finding the Fourth Proportional to 20,093.36, 27,729.50 and 11,141.70

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Solution

The fourth proportional to 20,093.36, 27,729.50 and 11,141.70 is: 15,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.36 : 27,729.50 = 11,141.70 : x
  2. Step 2: Convert to fraction form
    20,093.36/27,729.50 = 11,141.70/x
  3. Step 3: Cross multiply
    20,093.36x = 27,729.50 × 11,141.70
  4. Step 4: Simplify right side
    20,093.36x = 308,953,714.44
  5. Step 5: Solve for x
    x = 308,953,714.44/20,093.36
  6. Step 6: Final answer
    x = 15,375.91

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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.