Home / 18,478-40,412

Finding the Third Proportional to 18,478 and 40,412

Calculator

Solution

The third proportional to 18,478 and 40,412 is: 88,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478 : 40,412 = 40,412 : x
  2. Step 2: Convert to fraction form
    18,478/40,412 = 40,412/x
  3. Step 3: Cross multiply
    18,478x = 40,412 × 40,412
  4. Step 4: Simplify right side
    18,478x = 1,633,129,744
  5. Step 5: Solve for x
    x = 1,633,129,744/18,478
  6. Step 6: Final answer
    x = 88,382.39

Related Problems

Find third proportional to 9,239 and 20,206
Half scale
Find third proportional to 36,956 and 80,824
Double scale
Find third proportional to 18,480 and 40,416
Similar ratio
Find third proportional to 27,717 and 60,618
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.