Home / 20,067.02-27,692.69-12,107.72

Finding the Fourth Proportional to 20,067.02, 27,692.69 and 12,107.72

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Solution

The fourth proportional to 20,067.02, 27,692.69 and 12,107.72 is: 16,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.02 : 27,692.69 = 12,107.72 : x
  2. Step 2: Convert to fraction form
    20,067.02/27,692.69 = 12,107.72/x
  3. Step 3: Cross multiply
    20,067.02x = 27,692.69 × 12,107.72
  4. Step 4: Simplify right side
    20,067.02x = 335,295,228.37
  5. Step 5: Solve for x
    x = 335,295,228.37/20,067.02
  6. Step 6: Final answer
    x = 16,708.77

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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.