Home / 20,253.70-27,949.46-11,054.90

Finding the Fourth Proportional to 20,253.70, 27,949.46 and 11,054.90

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Solution

The fourth proportional to 20,253.70, 27,949.46 and 11,054.90 is: 15,255.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.70 : 27,949.46 = 11,054.90 : x
  2. Step 2: Convert to fraction form
    20,253.70/27,949.46 = 11,054.90/x
  3. Step 3: Cross multiply
    20,253.70x = 27,949.46 × 11,054.90
  4. Step 4: Simplify right side
    20,253.70x = 308,978,499.95
  5. Step 5: Solve for x
    x = 308,978,499.95/20,253.70
  6. Step 6: Final answer
    x = 15,255.41

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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.