Home / 20,759.27-28,648.43-11,808.06

Finding the Fourth Proportional to 20,759.27, 28,648.43 and 11,808.06

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Solution

The fourth proportional to 20,759.27, 28,648.43 and 11,808.06 is: 16,295.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.27 : 28,648.43 = 11,808.06 : x
  2. Step 2: Convert to fraction form
    20,759.27/28,648.43 = 11,808.06/x
  3. Step 3: Cross multiply
    20,759.27x = 28,648.43 × 11,808.06
  4. Step 4: Simplify right side
    20,759.27x = 338,282,321.31
  5. Step 5: Solve for x
    x = 338,282,321.31/20,759.27
  6. Step 6: Final answer
    x = 16,295.49

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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.