Home / 18,396-39,624

Finding the Third Proportional to 18,396 and 39,624

Calculator

Solution

The third proportional to 18,396 and 39,624 is: 85,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396 : 39,624 = 39,624 : x
  2. Step 2: Convert to fraction form
    18,396/39,624 = 39,624/x
  3. Step 3: Cross multiply
    18,396x = 39,624 × 39,624
  4. Step 4: Simplify right side
    18,396x = 1,570,061,376
  5. Step 5: Solve for x
    x = 1,570,061,376/18,396
  6. Step 6: Final answer
    x = 85,347.98

Related Problems

Find third proportional to 9,198 and 19,812
Half scale
Find third proportional to 36,792 and 79,248
Double scale
Find third proportional to 18,398 and 39,628
Similar ratio
Find third proportional to 27,594 and 59,436
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.