Home / 15,668-21,486

Finding the Third Proportional to 15,668 and 21,486

Calculator

Solution

The third proportional to 15,668 and 21,486 is: 29,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668 : 21,486 = 21,486 : x
  2. Step 2: Convert to fraction form
    15,668/21,486 = 21,486/x
  3. Step 3: Cross multiply
    15,668x = 21,486 × 21,486
  4. Step 4: Simplify right side
    15,668x = 461,648,196
  5. Step 5: Solve for x
    x = 461,648,196/15,668
  6. Step 6: Final answer
    x = 29,464.40

Related Problems

Find third proportional to 7,834 and 10,743
Half scale
Find third proportional to 31,336 and 42,972
Double scale
Find third proportional to 15,670 and 21,489
Similar ratio
Find third proportional to 23,502 and 32,229
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.