Home / 18,686-40,252

Finding the Third Proportional to 18,686 and 40,252

Calculator

Solution

The third proportional to 18,686 and 40,252 is: 86,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686 : 40,252 = 40,252 : x
  2. Step 2: Convert to fraction form
    18,686/40,252 = 40,252/x
  3. Step 3: Cross multiply
    18,686x = 40,252 × 40,252
  4. Step 4: Simplify right side
    18,686x = 1,620,223,504
  5. Step 5: Solve for x
    x = 1,620,223,504/18,686
  6. Step 6: Final answer
    x = 86,707.88

Related Problems

Find third proportional to 9,343 and 20,126
Half scale
Find third proportional to 37,372 and 80,504
Double scale
Find third proportional to 18,688 and 40,256
Similar ratio
Find third proportional to 28,029 and 60,378
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.