Home / 20,126.44-27,774.66-11,173.60

Finding the Fourth Proportional to 20,126.44, 27,774.66 and 11,173.60

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Solution

The fourth proportional to 20,126.44, 27,774.66 and 11,173.60 is: 15,419.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.44 : 27,774.66 = 11,173.60 : x
  2. Step 2: Convert to fraction form
    20,126.44/27,774.66 = 11,173.60/x
  3. Step 3: Cross multiply
    20,126.44x = 27,774.66 × 11,173.60
  4. Step 4: Simplify right side
    20,126.44x = 310,342,940.98
  5. Step 5: Solve for x
    x = 310,342,940.98/20,126.44
  6. Step 6: Final answer
    x = 15,419.66

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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.