Home / 20,504.22-30,745.39-10,618.98

Finding the Fourth Proportional to 20,504.22, 30,745.39 and 10,618.98

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Solution

The fourth proportional to 20,504.22, 30,745.39 and 10,618.98 is: 15,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.22 : 30,745.39 = 10,618.98 : x
  2. Step 2: Convert to fraction form
    20,504.22/30,745.39 = 10,618.98/x
  3. Step 3: Cross multiply
    20,504.22x = 30,745.39 × 10,618.98
  4. Step 4: Simplify right side
    20,504.22x = 326,484,559.57
  5. Step 5: Solve for x
    x = 326,484,559.57/20,504.22
  6. Step 6: Final answer
    x = 15,922.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.