Home / 17,946-39,420

Finding the Third Proportional to 17,946 and 39,420

Calculator

Solution

The third proportional to 17,946 and 39,420 is: 86,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,946 : 39,420 = 39,420 : x
  2. Step 2: Convert to fraction form
    17,946/39,420 = 39,420/x
  3. Step 3: Cross multiply
    17,946x = 39,420 × 39,420
  4. Step 4: Simplify right side
    17,946x = 1,553,936,400
  5. Step 5: Solve for x
    x = 1,553,936,400/17,946
  6. Step 6: Final answer
    x = 86,589.57

Related Problems

Find third proportional to 8,973 and 19,710
Half scale
Find third proportional to 35,892 and 78,840
Double scale
Find third proportional to 17,948 and 39,424
Similar ratio
Find third proportional to 26,919 and 59,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.