Home / 19,843.84-27,383.60-11,890.48

Finding the Fourth Proportional to 19,843.84, 27,383.60 and 11,890.48

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Solution

The fourth proportional to 19,843.84, 27,383.60 and 11,890.48 is: 16,408.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.84 : 27,383.60 = 11,890.48 : x
  2. Step 2: Convert to fraction form
    19,843.84/27,383.60 = 11,890.48/x
  3. Step 3: Cross multiply
    19,843.84x = 27,383.60 × 11,890.48
  4. Step 4: Simplify right side
    19,843.84x = 325,604,148.13
  5. Step 5: Solve for x
    x = 325,604,148.13/19,843.84
  6. Step 6: Final answer
    x = 16,408.32

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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.