Home / 20,758.74-28,645.56-11,806.44

Finding the Fourth Proportional to 20,758.74, 28,645.56 and 11,806.44

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Solution

The fourth proportional to 20,758.74, 28,645.56 and 11,806.44 is: 16,292.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.74 : 28,645.56 = 11,806.44 : x
  2. Step 2: Convert to fraction form
    20,758.74/28,645.56 = 11,806.44/x
  3. Step 3: Cross multiply
    20,758.74x = 28,645.56 × 11,806.44
  4. Step 4: Simplify right side
    20,758.74x = 338,202,085.41
  5. Step 5: Solve for x
    x = 338,202,085.41/20,758.74
  6. Step 6: Final answer
    x = 16,292.03

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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.