Home / 20,037.42-27,651.81-11,085.21

Finding the Fourth Proportional to 20,037.42, 27,651.81 and 11,085.21

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Solution

The fourth proportional to 20,037.42, 27,651.81 and 11,085.21 is: 15,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.42 : 27,651.81 = 11,085.21 : x
  2. Step 2: Convert to fraction form
    20,037.42/27,651.81 = 11,085.21/x
  3. Step 3: Cross multiply
    20,037.42x = 27,651.81 × 11,085.21
  4. Step 4: Simplify right side
    20,037.42x = 306,526,120.73
  5. Step 5: Solve for x
    x = 306,526,120.73/20,037.42
  6. Step 6: Final answer
    x = 15,297.68

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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.