Home / 20,025.78-27,634.38-11,072.58

Finding the Fourth Proportional to 20,025.78, 27,634.38 and 11,072.58

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Solution

The fourth proportional to 20,025.78, 27,634.38 and 11,072.58 is: 15,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.78 : 27,634.38 = 11,072.58 : x
  2. Step 2: Convert to fraction form
    20,025.78/27,634.38 = 11,072.58/x
  3. Step 3: Cross multiply
    20,025.78x = 27,634.38 × 11,072.58
  4. Step 4: Simplify right side
    20,025.78x = 305,983,883.30
  5. Step 5: Solve for x
    x = 305,983,883.30/20,025.78
  6. Step 6: Final answer
    x = 15,279.50

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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.