Home / 17.57-24.20-15.23

Finding the Fourth Proportional to 17.57, 24.20 and 15.23

Calculator

Solution

The fourth proportional to 17.57, 24.20 and 15.23 is: 20.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.57 : 24.20 = 15.23 : x
  2. Step 2: Convert to fraction form
    17.57/24.20 = 15.23/x
  3. Step 3: Cross multiply
    17.57x = 24.20 × 15.23
  4. Step 4: Simplify right side
    17.57x = 368.57
  5. Step 5: Solve for x
    x = 368.57/17.57
  6. Step 6: Final answer
    x = 20.98

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.