Home / 18,897-39,621

Finding the Third Proportional to 18,897 and 39,621

Calculator

Solution

The third proportional to 18,897 and 39,621 is: 83,072.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897 : 39,621 = 39,621 : x
  2. Step 2: Convert to fraction form
    18,897/39,621 = 39,621/x
  3. Step 3: Cross multiply
    18,897x = 39,621 × 39,621
  4. Step 4: Simplify right side
    18,897x = 1,569,823,641
  5. Step 5: Solve for x
    x = 1,569,823,641/18,897
  6. Step 6: Final answer
    x = 83,072.64

Related Problems

Find third proportional to 9,448.50 and 19,810.50
Half scale
Find third proportional to 37,794 and 79,242
Double scale
Find third proportional to 18,899 and 39,625
Similar ratio
Find third proportional to 28,345.50 and 59,431.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.