Home / 18,920-28,644

Finding the Third Proportional to 18,920 and 28,644

Calculator

Solution

The third proportional to 18,920 and 28,644 is: 43,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920 : 28,644 = 28,644 : x
  2. Step 2: Convert to fraction form
    18,920/28,644 = 28,644/x
  3. Step 3: Cross multiply
    18,920x = 28,644 × 28,644
  4. Step 4: Simplify right side
    18,920x = 820,478,736
  5. Step 5: Solve for x
    x = 820,478,736/18,920
  6. Step 6: Final answer
    x = 43,365.68

Related Problems

Find third proportional to 9,460 and 14,322
Half scale
Find third proportional to 37,840 and 57,288
Double scale
Find third proportional to 18,922 and 28,647
Similar ratio
Find third proportional to 28,380 and 42,966
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.