Home / 14.56-31.38

Finding the Third Proportional to 14.56 and 31.38

Calculator

Solution

The third proportional to 14.56 and 31.38 is: 67.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14.56 : 31.38 = 31.38 : x
  2. Step 2: Convert to fraction form
    14.56/31.38 = 31.38/x
  3. Step 3: Cross multiply
    14.56x = 31.38 × 31.38
  4. Step 4: Simplify right side
    14.56x = 984.39
  5. Step 5: Solve for x
    x = 984.39/14.56
  6. Step 6: Final answer
    x = 67.60

Related Problems

Find third proportional to 7.28 and 15.69
Half scale
Find third proportional to 29.13 and 62.75
Double scale
Find third proportional to 17 and 36
Similar ratio
Find third proportional to 21.84 and 47.06
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.