Home / 18,488-40,664

Finding the Third Proportional to 18,488 and 40,664

Calculator

Solution

The third proportional to 18,488 and 40,664 is: 89,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488 : 40,664 = 40,664 : x
  2. Step 2: Convert to fraction form
    18,488/40,664 = 40,664/x
  3. Step 3: Cross multiply
    18,488x = 40,664 × 40,664
  4. Step 4: Simplify right side
    18,488x = 1,653,560,896
  5. Step 5: Solve for x
    x = 1,653,560,896/18,488
  6. Step 6: Final answer
    x = 89,439.68

Related Problems

Find third proportional to 9,244 and 20,332
Half scale
Find third proportional to 36,976 and 81,328
Double scale
Find third proportional to 18,490 and 40,668
Similar ratio
Find third proportional to 27,732 and 60,996
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.