Home / 18,620-28,104

Finding the Third Proportional to 18,620 and 28,104

Calculator

Solution

The third proportional to 18,620 and 28,104 is: 42,418.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620 : 28,104 = 28,104 : x
  2. Step 2: Convert to fraction form
    18,620/28,104 = 28,104/x
  3. Step 3: Cross multiply
    18,620x = 28,104 × 28,104
  4. Step 4: Simplify right side
    18,620x = 789,834,816
  5. Step 5: Solve for x
    x = 789,834,816/18,620
  6. Step 6: Final answer
    x = 42,418.63

Related Problems

Find third proportional to 9,310 and 14,052
Half scale
Find third proportional to 37,240 and 56,208
Double scale
Find third proportional to 18,622 and 28,107
Similar ratio
Find third proportional to 27,930 and 42,156
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.