Home / 15,690-33,540

Finding the Third Proportional to 15,690 and 33,540

Calculator

Solution

The third proportional to 15,690 and 33,540 is: 71,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690 : 33,540 = 33,540 : x
  2. Step 2: Convert to fraction form
    15,690/33,540 = 33,540/x
  3. Step 3: Cross multiply
    15,690x = 33,540 × 33,540
  4. Step 4: Simplify right side
    15,690x = 1,124,931,600
  5. Step 5: Solve for x
    x = 1,124,931,600/15,690
  6. Step 6: Final answer
    x = 71,697.36

Related Problems

Find third proportional to 7,845 and 16,770
Half scale
Find third proportional to 31,380 and 67,080
Double scale
Find third proportional to 15,692 and 33,544
Similar ratio
Find third proportional to 23,535 and 50,310
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.