Home / 20,494.69-28,098.33-20,121.08

Finding the Fourth Proportional to 20,494.69, 28,098.33 and 20,121.08

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Solution

The fourth proportional to 20,494.69, 28,098.33 and 20,121.08 is: 27,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.69 : 28,098.33 = 20,121.08 : x
  2. Step 2: Convert to fraction form
    20,494.69/28,098.33 = 20,121.08/x
  3. Step 3: Cross multiply
    20,494.69x = 28,098.33 × 20,121.08
  4. Step 4: Simplify right side
    20,494.69x = 565,368,745.80
  5. Step 5: Solve for x
    x = 565,368,745.80/20,494.69
  6. Step 6: Final answer
    x = 27,586.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.