Home / 20,701.38-28,568.62-11,749.26

Finding the Fourth Proportional to 20,701.38, 28,568.62 and 11,749.26

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Solution

The fourth proportional to 20,701.38, 28,568.62 and 11,749.26 is: 16,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.38 : 28,568.62 = 11,749.26 : x
  2. Step 2: Convert to fraction form
    20,701.38/28,568.62 = 11,749.26/x
  3. Step 3: Cross multiply
    20,701.38x = 28,568.62 × 11,749.26
  4. Step 4: Simplify right side
    20,701.38x = 335,660,144.22
  5. Step 5: Solve for x
    x = 335,660,144.22/20,701.38
  6. Step 6: Final answer
    x = 16,214.38

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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.