Home / 20,067.73-27,686.34-11,995.77

Finding the Fourth Proportional to 20,067.73, 27,686.34 and 11,995.77

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Solution

The fourth proportional to 20,067.73, 27,686.34 and 11,995.77 is: 16,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.73 : 27,686.34 = 11,995.77 : x
  2. Step 2: Convert to fraction form
    20,067.73/27,686.34 = 11,995.77/x
  3. Step 3: Cross multiply
    20,067.73x = 27,686.34 × 11,995.77
  4. Step 4: Simplify right side
    20,067.73x = 332,119,070.61
  5. Step 5: Solve for x
    x = 332,119,070.61/20,067.73
  6. Step 6: Final answer
    x = 16,549.91

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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.