Home / 20,211.27-27,884.01-20,180.12

Finding the Fourth Proportional to 20,211.27, 27,884.01 and 20,180.12

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Solution

The fourth proportional to 20,211.27, 27,884.01 and 20,180.12 is: 27,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.27 : 27,884.01 = 20,180.12 : x
  2. Step 2: Convert to fraction form
    20,211.27/27,884.01 = 20,180.12/x
  3. Step 3: Cross multiply
    20,211.27x = 27,884.01 × 20,180.12
  4. Step 4: Simplify right side
    20,211.27x = 562,702,813.27
  5. Step 5: Solve for x
    x = 562,702,813.27/20,211.27
  6. Step 6: Final answer
    x = 27,841.04

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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.