Home / 17,982-38,690

Finding the Third Proportional to 17,982 and 38,690

Calculator

Solution

The third proportional to 17,982 and 38,690 is: 83,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,982 : 38,690 = 38,690 : x
  2. Step 2: Convert to fraction form
    17,982/38,690 = 38,690/x
  3. Step 3: Cross multiply
    17,982x = 38,690 × 38,690
  4. Step 4: Simplify right side
    17,982x = 1,496,916,100
  5. Step 5: Solve for x
    x = 1,496,916,100/17,982
  6. Step 6: Final answer
    x = 83,245.25

Related Problems

Find third proportional to 8,991 and 19,345
Half scale
Find third proportional to 35,964 and 77,380
Double scale
Find third proportional to 17,984 and 38,694
Similar ratio
Find third proportional to 26,973 and 58,035
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.