Home / 20,713-28,584.66-11,760.88

Finding the Fourth Proportional to 20,713, 28,584.66 and 11,760.88

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Solution

The fourth proportional to 20,713, 28,584.66 and 11,760.88 is: 16,230.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713 : 28,584.66 = 11,760.88 : x
  2. Step 2: Convert to fraction form
    20,713/28,584.66 = 11,760.88/x
  3. Step 3: Cross multiply
    20,713x = 28,584.66 × 11,760.88
  4. Step 4: Simplify right side
    20,713x = 336,180,756.10
  5. Step 5: Solve for x
    x = 336,180,756.10/20,713
  6. Step 6: Final answer
    x = 16,230.42

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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.