Home / 20,101.35-27,741.33-11,150.55

Finding the Fourth Proportional to 20,101.35, 27,741.33 and 11,150.55

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Solution

The fourth proportional to 20,101.35, 27,741.33 and 11,150.55 is: 15,388.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.35 : 27,741.33 = 11,150.55 : x
  2. Step 2: Convert to fraction form
    20,101.35/27,741.33 = 11,150.55/x
  3. Step 3: Cross multiply
    20,101.35x = 27,741.33 × 11,150.55
  4. Step 4: Simplify right side
    20,101.35x = 309,331,087.23
  5. Step 5: Solve for x
    x = 309,331,087.23/20,101.35
  6. Step 6: Final answer
    x = 15,388.57

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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.