Home / 20,496.41-30,759.21-15,821.09

Finding the Fourth Proportional to 20,496.41, 30,759.21 and 15,821.09

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Solution

The fourth proportional to 20,496.41, 30,759.21 and 15,821.09 is: 23,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.41 : 30,759.21 = 15,821.09 : x
  2. Step 2: Convert to fraction form
    20,496.41/30,759.21 = 15,821.09/x
  3. Step 3: Cross multiply
    20,496.41x = 30,759.21 × 15,821.09
  4. Step 4: Simplify right side
    20,496.41x = 486,644,229.74
  5. Step 5: Solve for x
    x = 486,644,229.74/20,496.41
  6. Step 6: Final answer
    x = 23,742.90

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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.