Home / 20,361.07-28,097.92-11,408.54

Finding the Fourth Proportional to 20,361.07, 28,097.92 and 11,408.54

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Solution

The fourth proportional to 20,361.07, 28,097.92 and 11,408.54 is: 15,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361.07 : 28,097.92 = 11,408.54 : x
  2. Step 2: Convert to fraction form
    20,361.07/28,097.92 = 11,408.54/x
  3. Step 3: Cross multiply
    20,361.07x = 28,097.92 × 11,408.54
  4. Step 4: Simplify right side
    20,361.07x = 320,556,187.19
  5. Step 5: Solve for x
    x = 320,556,187.19/20,361.07
  6. Step 6: Final answer
    x = 15,743.59

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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.