Home / 20,164.48-27,822.98-12,207.44

Finding the Fourth Proportional to 20,164.48, 27,822.98 and 12,207.44

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Solution

The fourth proportional to 20,164.48, 27,822.98 and 12,207.44 is: 16,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.48 : 27,822.98 = 12,207.44 : x
  2. Step 2: Convert to fraction form
    20,164.48/27,822.98 = 12,207.44/x
  3. Step 3: Cross multiply
    20,164.48x = 27,822.98 × 12,207.44
  4. Step 4: Simplify right side
    20,164.48x = 339,647,459.05
  5. Step 5: Solve for x
    x = 339,647,459.05/20,164.48
  6. Step 6: Final answer
    x = 16,843.85

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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.