Home / 21,201.93-29,257.20-11,769.75

Finding the Fourth Proportional to 21,201.93, 29,257.20 and 11,769.75

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Solution

The fourth proportional to 21,201.93, 29,257.20 and 11,769.75 is: 16,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.93 : 29,257.20 = 11,769.75 : x
  2. Step 2: Convert to fraction form
    21,201.93/29,257.20 = 11,769.75/x
  3. Step 3: Cross multiply
    21,201.93x = 29,257.20 × 11,769.75
  4. Step 4: Simplify right side
    21,201.93x = 344,349,929.70
  5. Step 5: Solve for x
    x = 344,349,929.70/21,201.93
  6. Step 6: Final answer
    x = 16,241.44

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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.