Home / 15,378-33,690

Finding the Third Proportional to 15,378 and 33,690

Calculator

Solution

The third proportional to 15,378 and 33,690 is: 73,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378 : 33,690 = 33,690 : x
  2. Step 2: Convert to fraction form
    15,378/33,690 = 33,690/x
  3. Step 3: Cross multiply
    15,378x = 33,690 × 33,690
  4. Step 4: Simplify right side
    15,378x = 1,135,016,100
  5. Step 5: Solve for x
    x = 1,135,016,100/15,378
  6. Step 6: Final answer
    x = 73,807.78

Related Problems

Find third proportional to 7,689 and 16,845
Half scale
Find third proportional to 30,756 and 67,380
Double scale
Find third proportional to 15,380 and 33,694
Similar ratio
Find third proportional to 23,067 and 50,535
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.