Home / 14,208-21,312

Finding the Third Proportional to 14,208 and 21,312

Calculator

Solution

The third proportional to 14,208 and 21,312 is: 31,968

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208 : 21,312 = 21,312 : x
  2. Step 2: Convert to fraction form
    14,208/21,312 = 21,312/x
  3. Step 3: Cross multiply
    14,208x = 21,312 × 21,312
  4. Step 4: Simplify right side
    14,208x = 454,201,344
  5. Step 5: Solve for x
    x = 454,201,344/14,208
  6. Step 6: Final answer
    x = 31,968

Related Problems

Find third proportional to 7,104 and 10,656
Half scale
Find third proportional to 28,416 and 42,624
Double scale
Find third proportional to 14,210 and 21,315
Similar ratio
Find third proportional to 21,312 and 31,968
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.