Home / 20.48-30.67-16.43

Finding the Fourth Proportional to 20.48, 30.67 and 16.43

Calculator

Solution

The fourth proportional to 20.48, 30.67 and 16.43 is: 24.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20.48 : 30.67 = 16.43 : x
  2. Step 2: Convert to fraction form
    20.48/30.67 = 16.43/x
  3. Step 3: Cross multiply
    20.48x = 30.67 × 16.43
  4. Step 4: Simplify right side
    20.48x = 503.71
  5. Step 5: Solve for x
    x = 503.71/20.48
  6. Step 6: Final answer
    x = 24.60

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.