Home / 16.24-17.72

Finding the Third Proportional to 16.24 and 17.72

Calculator

Solution

The third proportional to 16.24 and 17.72 is: 19.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.24 : 17.72 = 17.72 : x
  2. Step 2: Convert to fraction form
    16.24/17.72 = 17.72/x
  3. Step 3: Cross multiply
    16.24x = 17.72 × 17.72
  4. Step 4: Simplify right side
    16.24x = 313.95
  5. Step 5: Solve for x
    x = 313.95/16.24
  6. Step 6: Final answer
    x = 19.33

Related Problems

Find third proportional to 8.12 and 8.86
Half scale
Find third proportional to 32.48 and 35.44
Double scale
Find third proportional to 18 and 20
Similar ratio
Find third proportional to 24.36 and 26.58
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.