Home / 20,149.56-27,806.72-11,653.60

Finding the Fourth Proportional to 20,149.56, 27,806.72 and 11,653.60

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Solution

The fourth proportional to 20,149.56, 27,806.72 and 11,653.60 is: 16,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.56 : 27,806.72 = 11,653.60 : x
  2. Step 2: Convert to fraction form
    20,149.56/27,806.72 = 11,653.60/x
  3. Step 3: Cross multiply
    20,149.56x = 27,806.72 × 11,653.60
  4. Step 4: Simplify right side
    20,149.56x = 324,048,271.11
  5. Step 5: Solve for x
    x = 324,048,271.11/20,149.56
  6. Step 6: Final answer
    x = 16,082.15

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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.