Home / 20,067.77-27,693.73-12,108.47

Finding the Fourth Proportional to 20,067.77, 27,693.73 and 12,108.47

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Solution

The fourth proportional to 20,067.77, 27,693.73 and 12,108.47 is: 16,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.77 : 27,693.73 = 12,108.47 : x
  2. Step 2: Convert to fraction form
    20,067.77/27,693.73 = 12,108.47/x
  3. Step 3: Cross multiply
    20,067.77x = 27,693.73 × 12,108.47
  4. Step 4: Simplify right side
    20,067.77x = 335,328,530.15
  5. Step 5: Solve for x
    x = 335,328,530.15/20,067.77
  6. Step 6: Final answer
    x = 16,709.80

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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.