Home / 18.15-24.89-17.75

Finding the Fourth Proportional to 18.15, 24.89 and 17.75

Calculator

Solution

The fourth proportional to 18.15, 24.89 and 17.75 is: 24.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.15 : 24.89 = 17.75 : x
  2. Step 2: Convert to fraction form
    18.15/24.89 = 17.75/x
  3. Step 3: Cross multiply
    18.15x = 24.89 × 17.75
  4. Step 4: Simplify right side
    18.15x = 441.80
  5. Step 5: Solve for x
    x = 441.80/18.15
  6. Step 6: Final answer
    x = 24.34

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.