Home / 17,880-39,216

Finding the Third Proportional to 17,880 and 39,216

Calculator

Solution

The third proportional to 17,880 and 39,216 is: 86,012.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,880 : 39,216 = 39,216 : x
  2. Step 2: Convert to fraction form
    17,880/39,216 = 39,216/x
  3. Step 3: Cross multiply
    17,880x = 39,216 × 39,216
  4. Step 4: Simplify right side
    17,880x = 1,537,894,656
  5. Step 5: Solve for x
    x = 1,537,894,656/17,880
  6. Step 6: Final answer
    x = 86,012.01

Related Problems

Find third proportional to 8,940 and 19,608
Half scale
Find third proportional to 35,760 and 78,432
Double scale
Find third proportional to 17,882 and 39,220
Similar ratio
Find third proportional to 26,820 and 58,824
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.