Home / 20,028.53-27,636.94-11,074.81

Finding the Fourth Proportional to 20,028.53, 27,636.94 and 11,074.81

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Solution

The fourth proportional to 20,028.53, 27,636.94 and 11,074.81 is: 15,281.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.53 : 27,636.94 = 11,074.81 : x
  2. Step 2: Convert to fraction form
    20,028.53/27,636.94 = 11,074.81/x
  3. Step 3: Cross multiply
    20,028.53x = 27,636.94 × 11,074.81
  4. Step 4: Simplify right side
    20,028.53x = 306,073,859.48
  5. Step 5: Solve for x
    x = 306,073,859.48/20,028.53
  6. Step 6: Final answer
    x = 15,281.89

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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.