Home / 18-32

Finding the Third Proportional to 18 and 32

Calculator

Solution

The third proportional to 18 and 32 is: 56.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18 : 32 = 32 : x
  2. Step 2: Convert to fraction form
    18/32 = 32/x
  3. Step 3: Cross multiply
    18x = 32 × 32
  4. Step 4: Simplify right side
    18x = 1,024
  5. Step 5: Solve for x
    x = 1,024/18
  6. Step 6: Final answer
    x = 56.89

Related Problems

Find third proportional to 9 and 16
Half scale
Find third proportional to 36 and 64
Double scale
Find third proportional to 20 and 36
Similar ratio
Find third proportional to 27 and 48
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.