Home / 18,434-39,278

Finding the Third Proportional to 18,434 and 39,278

Calculator

Solution

The third proportional to 18,434 and 39,278 is: 83,691.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434 : 39,278 = 39,278 : x
  2. Step 2: Convert to fraction form
    18,434/39,278 = 39,278/x
  3. Step 3: Cross multiply
    18,434x = 39,278 × 39,278
  4. Step 4: Simplify right side
    18,434x = 1,542,761,284
  5. Step 5: Solve for x
    x = 1,542,761,284/18,434
  6. Step 6: Final answer
    x = 83,691.08

Related Problems

Find third proportional to 9,217 and 19,639
Half scale
Find third proportional to 36,868 and 78,556
Double scale
Find third proportional to 18,436 and 39,282
Similar ratio
Find third proportional to 27,651 and 58,917
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.