Home / 19,936.35-27,507.20-12,854.25

Finding the Fourth Proportional to 19,936.35, 27,507.20 and 12,854.25

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Solution

The fourth proportional to 19,936.35, 27,507.20 and 12,854.25 is: 17,735.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.35 : 27,507.20 = 12,854.25 : x
  2. Step 2: Convert to fraction form
    19,936.35/27,507.20 = 12,854.25/x
  3. Step 3: Cross multiply
    19,936.35x = 27,507.20 × 12,854.25
  4. Step 4: Simplify right side
    19,936.35x = 353,584,361.33
  5. Step 5: Solve for x
    x = 353,584,361.33/19,936.35
  6. Step 6: Final answer
    x = 17,735.66

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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.