Home / 25,919.09-35,785.55-19,940.21

Finding the Fourth Proportional to 25,919.09, 35,785.55 and 19,940.21

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Solution

The fourth proportional to 25,919.09, 35,785.55 and 19,940.21 is: 27,530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.09 : 35,785.55 = 19,940.21 : x
  2. Step 2: Convert to fraction form
    25,919.09/35,785.55 = 19,940.21/x
  3. Step 3: Cross multiply
    25,919.09x = 35,785.55 × 19,940.21
  4. Step 4: Simplify right side
    25,919.09x = 713,571,252.89
  5. Step 5: Solve for x
    x = 713,571,252.89/25,919.09
  6. Step 6: Final answer
    x = 27,530.73

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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.