Home / 19,864-39,220

Finding the Third Proportional to 19,864 and 39,220

Calculator

Solution

The third proportional to 19,864 and 39,220 is: 77,436.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864 : 39,220 = 39,220 : x
  2. Step 2: Convert to fraction form
    19,864/39,220 = 39,220/x
  3. Step 3: Cross multiply
    19,864x = 39,220 × 39,220
  4. Step 4: Simplify right side
    19,864x = 1,538,208,400
  5. Step 5: Solve for x
    x = 1,538,208,400/19,864
  6. Step 6: Final answer
    x = 77,436.99

Related Problems

Find third proportional to 9,932 and 19,610
Half scale
Find third proportional to 39,728 and 78,440
Double scale
Find third proportional to 19,866 and 39,224
Similar ratio
Find third proportional to 29,796 and 58,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.