Home / 18,668-40,972

Finding the Third Proportional to 18,668 and 40,972

Calculator

Solution

The third proportional to 18,668 and 40,972 is: 89,924.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668 : 40,972 = 40,972 : x
  2. Step 2: Convert to fraction form
    18,668/40,972 = 40,972/x
  3. Step 3: Cross multiply
    18,668x = 40,972 × 40,972
  4. Step 4: Simplify right side
    18,668x = 1,678,704,784
  5. Step 5: Solve for x
    x = 1,678,704,784/18,668
  6. Step 6: Final answer
    x = 89,924.19

Related Problems

Find third proportional to 9,334 and 20,486
Half scale
Find third proportional to 37,336 and 81,944
Double scale
Find third proportional to 18,670 and 40,976
Similar ratio
Find third proportional to 28,002 and 61,458
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.