Home / 20,482.33-28,265.62-11,986.08

Finding the Fourth Proportional to 20,482.33, 28,265.62 and 11,986.08

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Solution

The fourth proportional to 20,482.33, 28,265.62 and 11,986.08 is: 16,540.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.33 : 28,265.62 = 11,986.08 : x
  2. Step 2: Convert to fraction form
    20,482.33/28,265.62 = 11,986.08/x
  3. Step 3: Cross multiply
    20,482.33x = 28,265.62 × 11,986.08
  4. Step 4: Simplify right side
    20,482.33x = 338,793,982.57
  5. Step 5: Solve for x
    x = 338,793,982.57/20,482.33
  6. Step 6: Final answer
    x = 16,540.79

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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.