Home / 20,672.11-28,525.35-11,717.83

Finding the Fourth Proportional to 20,672.11, 28,525.35 and 11,717.83

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Solution

The fourth proportional to 20,672.11, 28,525.35 and 11,717.83 is: 16,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672.11 : 28,525.35 = 11,717.83 : x
  2. Step 2: Convert to fraction form
    20,672.11/28,525.35 = 11,717.83/x
  3. Step 3: Cross multiply
    20,672.11x = 28,525.35 × 11,717.83
  4. Step 4: Simplify right side
    20,672.11x = 334,255,201.99
  5. Step 5: Solve for x
    x = 334,255,201.99/20,672.11
  6. Step 6: Final answer
    x = 16,169.38

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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.