Home / 19,620-27,960

Finding the Third Proportional to 19,620 and 27,960

Calculator

Solution

The third proportional to 19,620 and 27,960 is: 39,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620 : 27,960 = 27,960 : x
  2. Step 2: Convert to fraction form
    19,620/27,960 = 27,960/x
  3. Step 3: Cross multiply
    19,620x = 27,960 × 27,960
  4. Step 4: Simplify right side
    19,620x = 781,761,600
  5. Step 5: Solve for x
    x = 781,761,600/19,620
  6. Step 6: Final answer
    x = 39,845.14

Related Problems

Find third proportional to 9,810 and 13,980
Half scale
Find third proportional to 39,240 and 55,920
Double scale
Find third proportional to 19,622 and 27,963
Similar ratio
Find third proportional to 29,430 and 41,940
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.