Home / 20,102.67-27,741.49-11,150.19

Finding the Fourth Proportional to 20,102.67, 27,741.49 and 11,150.19

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Solution

The fourth proportional to 20,102.67, 27,741.49 and 11,150.19 is: 15,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.67 : 27,741.49 = 11,150.19 : x
  2. Step 2: Convert to fraction form
    20,102.67/27,741.49 = 11,150.19/x
  3. Step 3: Cross multiply
    20,102.67x = 27,741.49 × 11,150.19
  4. Step 4: Simplify right side
    20,102.67x = 309,322,884.38
  5. Step 5: Solve for x
    x = 309,322,884.38/20,102.67
  6. Step 6: Final answer
    x = 15,387.15

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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.