Home / 21,708-25,272

Finding the Third Proportional to 21,708 and 25,272

Calculator

Solution

The third proportional to 21,708 and 25,272 is: 29,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708 : 25,272 = 25,272 : x
  2. Step 2: Convert to fraction form
    21,708/25,272 = 25,272/x
  3. Step 3: Cross multiply
    21,708x = 25,272 × 25,272
  4. Step 4: Simplify right side
    21,708x = 638,673,984
  5. Step 5: Solve for x
    x = 638,673,984/21,708
  6. Step 6: Final answer
    x = 29,421.13

Related Problems

Find third proportional to 10,854 and 12,636
Half scale
Find third proportional to 43,416 and 50,544
Double scale
Find third proportional to 21,710 and 25,274
Similar ratio
Find third proportional to 32,562 and 37,908
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.