Home / 20,827.26-28,741.23-11,396.70

Finding the Fourth Proportional to 20,827.26, 28,741.23 and 11,396.70

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Solution

The fourth proportional to 20,827.26, 28,741.23 and 11,396.70 is: 15,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,827.26 : 28,741.23 = 11,396.70 : x
  2. Step 2: Convert to fraction form
    20,827.26/28,741.23 = 11,396.70/x
  3. Step 3: Cross multiply
    20,827.26x = 28,741.23 × 11,396.70
  4. Step 4: Simplify right side
    20,827.26x = 327,555,175.94
  5. Step 5: Solve for x
    x = 327,555,175.94/20,827.26
  6. Step 6: Final answer
    x = 15,727.23

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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.