Home / 17,988-39,261

Finding the Third Proportional to 17,988 and 39,261

Calculator

Solution

The third proportional to 17,988 and 39,261 is: 85,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988 : 39,261 = 39,261 : x
  2. Step 2: Convert to fraction form
    17,988/39,261 = 39,261/x
  3. Step 3: Cross multiply
    17,988x = 39,261 × 39,261
  4. Step 4: Simplify right side
    17,988x = 1,541,426,121
  5. Step 5: Solve for x
    x = 1,541,426,121/17,988
  6. Step 6: Final answer
    x = 85,691.91

Related Problems

Find third proportional to 8,994 and 19,630.50
Half scale
Find third proportional to 35,976 and 78,522
Double scale
Find third proportional to 17,990 and 39,265
Similar ratio
Find third proportional to 26,982 and 58,891.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.