Home / 20,236.26-27,930.51-13,150.38

Finding the Fourth Proportional to 20,236.26, 27,930.51 and 13,150.38

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Solution

The fourth proportional to 20,236.26, 27,930.51 and 13,150.38 is: 18,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.26 : 27,930.51 = 13,150.38 : x
  2. Step 2: Convert to fraction form
    20,236.26/27,930.51 = 13,150.38/x
  3. Step 3: Cross multiply
    20,236.26x = 27,930.51 × 13,150.38
  4. Step 4: Simplify right side
    20,236.26x = 367,296,820.09
  5. Step 5: Solve for x
    x = 367,296,820.09/20,236.26
  6. Step 6: Final answer
    x = 18,150.43

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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.