Home / 18,816-28,256

Finding the Third Proportional to 18,816 and 28,256

Calculator

Solution

The third proportional to 18,816 and 28,256 is: 42,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816 : 28,256 = 28,256 : x
  2. Step 2: Convert to fraction form
    18,816/28,256 = 28,256/x
  3. Step 3: Cross multiply
    18,816x = 28,256 × 28,256
  4. Step 4: Simplify right side
    18,816x = 798,401,536
  5. Step 5: Solve for x
    x = 798,401,536/18,816
  6. Step 6: Final answer
    x = 42,432.05

Related Problems

Find third proportional to 9,408 and 14,128
Half scale
Find third proportional to 37,632 and 56,512
Double scale
Find third proportional to 18,818 and 28,259
Similar ratio
Find third proportional to 28,224 and 42,384
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.