Home / 20,898-43,518

Finding the Third Proportional to 20,898 and 43,518

Calculator

Solution

The third proportional to 20,898 and 43,518 is: 90,621.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898 : 43,518 = 43,518 : x
  2. Step 2: Convert to fraction form
    20,898/43,518 = 43,518/x
  3. Step 3: Cross multiply
    20,898x = 43,518 × 43,518
  4. Step 4: Simplify right side
    20,898x = 1,893,816,324
  5. Step 5: Solve for x
    x = 1,893,816,324/20,898
  6. Step 6: Final answer
    x = 90,621.89

Related Problems

Find third proportional to 10,449 and 21,759
Half scale
Find third proportional to 41,796 and 87,036
Double scale
Find third proportional to 20,900 and 43,522
Similar ratio
Find third proportional to 31,347 and 65,277
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.