Home / 20,904-31,356

Finding the Third Proportional to 20,904 and 31,356

Calculator

Solution

The third proportional to 20,904 and 31,356 is: 47,034

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904 : 31,356 = 31,356 : x
  2. Step 2: Convert to fraction form
    20,904/31,356 = 31,356/x
  3. Step 3: Cross multiply
    20,904x = 31,356 × 31,356
  4. Step 4: Simplify right side
    20,904x = 983,198,736
  5. Step 5: Solve for x
    x = 983,198,736/20,904
  6. Step 6: Final answer
    x = 47,034

Related Problems

Find third proportional to 10,452 and 15,678
Half scale
Find third proportional to 41,808 and 62,712
Double scale
Find third proportional to 20,906 and 31,359
Similar ratio
Find third proportional to 31,356 and 47,034
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.