Home / 21,606-28,197

Finding the Third Proportional to 21,606 and 28,197

Calculator

Solution

The third proportional to 21,606 and 28,197 is: 36,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606 : 28,197 = 28,197 : x
  2. Step 2: Convert to fraction form
    21,606/28,197 = 28,197/x
  3. Step 3: Cross multiply
    21,606x = 28,197 × 28,197
  4. Step 4: Simplify right side
    21,606x = 795,070,809
  5. Step 5: Solve for x
    x = 795,070,809/21,606
  6. Step 6: Final answer
    x = 36,798.61

Related Problems

Find third proportional to 10,803 and 14,098.50
Half scale
Find third proportional to 43,212 and 56,394
Double scale
Find third proportional to 21,608 and 28,200
Similar ratio
Find third proportional to 32,409 and 42,295.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.