Home / 18,680-28,161

Finding the Third Proportional to 18,680 and 28,161

Calculator

Solution

The third proportional to 18,680 and 28,161 is: 42,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680 : 28,161 = 28,161 : x
  2. Step 2: Convert to fraction form
    18,680/28,161 = 28,161/x
  3. Step 3: Cross multiply
    18,680x = 28,161 × 28,161
  4. Step 4: Simplify right side
    18,680x = 793,041,921
  5. Step 5: Solve for x
    x = 793,041,921/18,680
  6. Step 6: Final answer
    x = 42,454.06

Related Problems

Find third proportional to 9,340 and 14,080.50
Half scale
Find third proportional to 37,360 and 56,322
Double scale
Find third proportional to 18,682 and 28,164
Similar ratio
Find third proportional to 28,020 and 42,241.50
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.