Home / 20,634.29-28,474.77-11,682.63

Finding the Fourth Proportional to 20,634.29, 28,474.77 and 11,682.63

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Solution

The fourth proportional to 20,634.29, 28,474.77 and 11,682.63 is: 16,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.29 : 28,474.77 = 11,682.63 : x
  2. Step 2: Convert to fraction form
    20,634.29/28,474.77 = 11,682.63/x
  3. Step 3: Cross multiply
    20,634.29x = 28,474.77 × 11,682.63
  4. Step 4: Simplify right side
    20,634.29x = 332,660,202.25
  5. Step 5: Solve for x
    x = 332,660,202.25/20,634.29
  6. Step 6: Final answer
    x = 16,121.72

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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.