Home / 19,218-39,393

Finding the Third Proportional to 19,218 and 39,393

Calculator

Solution

The third proportional to 19,218 and 39,393 is: 80,747.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218 : 39,393 = 39,393 : x
  2. Step 2: Convert to fraction form
    19,218/39,393 = 39,393/x
  3. Step 3: Cross multiply
    19,218x = 39,393 × 39,393
  4. Step 4: Simplify right side
    19,218x = 1,551,808,449
  5. Step 5: Solve for x
    x = 1,551,808,449/19,218
  6. Step 6: Final answer
    x = 80,747.66

Related Problems

Find third proportional to 9,609 and 19,696.50
Half scale
Find third proportional to 38,436 and 78,786
Double scale
Find third proportional to 19,220 and 39,397
Similar ratio
Find third proportional to 28,827 and 59,089.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.