Home / 20,692.00-28,555.61-11,739.88

Finding the Fourth Proportional to 20,692.00, 28,555.61 and 11,739.88

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Solution

The fourth proportional to 20,692.00, 28,555.61 and 11,739.88 is: 16,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.00 : 28,555.61 = 11,739.88 : x
  2. Step 2: Convert to fraction form
    20,692.00/28,555.61 = 11,739.88/x
  3. Step 3: Cross multiply
    20,692.00x = 28,555.61 × 11,739.88
  4. Step 4: Simplify right side
    20,692.00x = 335,239,520.79
  5. Step 5: Solve for x
    x = 335,239,520.79/20,692.00
  6. Step 6: Final answer
    x = 16,201.41

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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.