Home / 20,864-43,453

Finding the Third Proportional to 20,864 and 43,453

Calculator

Solution

The third proportional to 20,864 and 43,453 is: 90,498.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864 : 43,453 = 43,453 : x
  2. Step 2: Convert to fraction form
    20,864/43,453 = 43,453/x
  3. Step 3: Cross multiply
    20,864x = 43,453 × 43,453
  4. Step 4: Simplify right side
    20,864x = 1,888,163,209
  5. Step 5: Solve for x
    x = 1,888,163,209/20,864
  6. Step 6: Final answer
    x = 90,498.62

Related Problems

Find third proportional to 10,432 and 21,726.50
Half scale
Find third proportional to 41,728 and 86,906
Double scale
Find third proportional to 20,866 and 43,457
Similar ratio
Find third proportional to 31,296 and 65,179.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.