Home / 20,197.94-27,867.54-12,129.44

Finding the Fourth Proportional to 20,197.94, 27,867.54 and 12,129.44

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Solution

The fourth proportional to 20,197.94, 27,867.54 and 12,129.44 is: 16,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.94 : 27,867.54 = 12,129.44 : x
  2. Step 2: Convert to fraction form
    20,197.94/27,867.54 = 12,129.44/x
  3. Step 3: Cross multiply
    20,197.94x = 27,867.54 × 12,129.44
  4. Step 4: Simplify right side
    20,197.94x = 338,017,654.38
  5. Step 5: Solve for x
    x = 338,017,654.38/20,197.94
  6. Step 6: Final answer
    x = 16,735.25

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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.