Home / 35.38-48.82-20.83

Finding the Fourth Proportional to 35.38, 48.82 and 20.83

Calculator

Solution

The fourth proportional to 35.38, 48.82 and 20.83 is: 28.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.38 : 48.82 = 20.83 : x
  2. Step 2: Convert to fraction form
    35.38/48.82 = 20.83/x
  3. Step 3: Cross multiply
    35.38x = 48.82 × 20.83
  4. Step 4: Simplify right side
    35.38x = 1,016.68
  5. Step 5: Solve for x
    x = 1,016.68/35.38
  6. Step 6: Final answer
    x = 28.74

Related Problems

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.