Home / 21,028-43,104

Finding the Third Proportional to 21,028 and 43,104

Calculator

Solution

The third proportional to 21,028 and 43,104 is: 88,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028 : 43,104 = 43,104 : x
  2. Step 2: Convert to fraction form
    21,028/43,104 = 43,104/x
  3. Step 3: Cross multiply
    21,028x = 43,104 × 43,104
  4. Step 4: Simplify right side
    21,028x = 1,857,954,816
  5. Step 5: Solve for x
    x = 1,857,954,816/21,028
  6. Step 6: Final answer
    x = 88,356.23

Related Problems

Find third proportional to 10,514 and 21,552
Half scale
Find third proportional to 42,056 and 86,208
Double scale
Find third proportional to 21,030 and 43,108
Similar ratio
Find third proportional to 31,542 and 64,656
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.