Home / 17,640-28,080

Finding the Third Proportional to 17,640 and 28,080

Calculator

Solution

The third proportional to 17,640 and 28,080 is: 44,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640 : 28,080 = 28,080 : x
  2. Step 2: Convert to fraction form
    17,640/28,080 = 28,080/x
  3. Step 3: Cross multiply
    17,640x = 28,080 × 28,080
  4. Step 4: Simplify right side
    17,640x = 788,486,400
  5. Step 5: Solve for x
    x = 788,486,400/17,640
  6. Step 6: Final answer
    x = 44,698.78

Related Problems

Find third proportional to 8,820 and 14,040
Half scale
Find third proportional to 35,280 and 56,160
Double scale
Find third proportional to 17,642 and 28,083
Similar ratio
Find third proportional to 26,460 and 42,120
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.