Home / 49.36-74.01-20.48

Finding the Fourth Proportional to 49.36, 74.01 and 20.48

Calculator

Solution

The fourth proportional to 49.36, 74.01 and 20.48 is: 30.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.36 : 74.01 = 20.48 : x
  2. Step 2: Convert to fraction form
    49.36/74.01 = 20.48/x
  3. Step 3: Cross multiply
    49.36x = 74.01 × 20.48
  4. Step 4: Simplify right side
    49.36x = 1,515.72
  5. Step 5: Solve for x
    x = 1,515.72/49.36
  6. Step 6: Final answer
    x = 30.71

Related Problems

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.