Home / 20,096.78-27,733.62-11,145.11

Finding the Fourth Proportional to 20,096.78, 27,733.62 and 11,145.11

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Solution

The fourth proportional to 20,096.78, 27,733.62 and 11,145.11 is: 15,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.78 : 27,733.62 = 11,145.11 : x
  2. Step 2: Convert to fraction form
    20,096.78/27,733.62 = 11,145.11/x
  3. Step 3: Cross multiply
    20,096.78x = 27,733.62 × 11,145.11
  4. Step 4: Simplify right side
    20,096.78x = 309,094,148.72
  5. Step 5: Solve for x
    x = 309,094,148.72/20,096.78
  6. Step 6: Final answer
    x = 15,380.29

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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.