Home / 20,067.54-27,685.77-12,997.86

Finding the Fourth Proportional to 20,067.54, 27,685.77 and 12,997.86

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Solution

The fourth proportional to 20,067.54, 27,685.77 and 12,997.86 is: 17,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.54 : 27,685.77 = 12,997.86 : x
  2. Step 2: Convert to fraction form
    20,067.54/27,685.77 = 12,997.86/x
  3. Step 3: Cross multiply
    20,067.54x = 27,685.77 × 12,997.86
  4. Step 4: Simplify right side
    20,067.54x = 359,855,762.45
  5. Step 5: Solve for x
    x = 359,855,762.45/20,067.54
  6. Step 6: Final answer
    x = 17,932.23

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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.