Home / 21,096.80-29,112.68-11,536.44

Finding the Fourth Proportional to 21,096.80, 29,112.68 and 11,536.44

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Solution

The fourth proportional to 21,096.80, 29,112.68 and 11,536.44 is: 15,919.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.80 : 29,112.68 = 11,536.44 : x
  2. Step 2: Convert to fraction form
    21,096.80/29,112.68 = 11,536.44/x
  3. Step 3: Cross multiply
    21,096.80x = 29,112.68 × 11,536.44
  4. Step 4: Simplify right side
    21,096.80x = 335,856,686.06
  5. Step 5: Solve for x
    x = 335,856,686.06/21,096.80
  6. Step 6: Final answer
    x = 15,919.79

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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.