Home / 18,168-39,486

Finding the Third Proportional to 18,168 and 39,486

Calculator

Solution

The third proportional to 18,168 and 39,486 is: 85,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168 : 39,486 = 39,486 : x
  2. Step 2: Convert to fraction form
    18,168/39,486 = 39,486/x
  3. Step 3: Cross multiply
    18,168x = 39,486 × 39,486
  4. Step 4: Simplify right side
    18,168x = 1,559,144,196
  5. Step 5: Solve for x
    x = 1,559,144,196/18,168
  6. Step 6: Final answer
    x = 85,818.15

Related Problems

Find third proportional to 9,084 and 19,743
Half scale
Find third proportional to 36,336 and 78,972
Double scale
Find third proportional to 18,170 and 39,490
Similar ratio
Find third proportional to 27,252 and 59,229
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.