Home / 18,412-38,240

Finding the Third Proportional to 18,412 and 38,240

Calculator

Solution

The third proportional to 18,412 and 38,240 is: 79,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,412 : 38,240 = 38,240 : x
  2. Step 2: Convert to fraction form
    18,412/38,240 = 38,240/x
  3. Step 3: Cross multiply
    18,412x = 38,240 × 38,240
  4. Step 4: Simplify right side
    18,412x = 1,462,297,600
  5. Step 5: Solve for x
    x = 1,462,297,600/18,412
  6. Step 6: Final answer
    x = 79,420.90

Related Problems

Find third proportional to 9,206 and 19,120
Half scale
Find third proportional to 36,824 and 76,480
Double scale
Find third proportional to 18,414 and 38,244
Similar ratio
Find third proportional to 27,618 and 57,360
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.