Home / 21,618-29,160

Finding the Third Proportional to 21,618 and 29,160

Calculator

Solution

The third proportional to 21,618 and 29,160 is: 39,333.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618 : 29,160 = 29,160 : x
  2. Step 2: Convert to fraction form
    21,618/29,160 = 29,160/x
  3. Step 3: Cross multiply
    21,618x = 29,160 × 29,160
  4. Step 4: Simplify right side
    21,618x = 850,305,600
  5. Step 5: Solve for x
    x = 850,305,600/21,618
  6. Step 6: Final answer
    x = 39,333.22

Related Problems

Find third proportional to 10,809 and 14,580
Half scale
Find third proportional to 43,236 and 58,320
Double scale
Find third proportional to 21,620 and 29,163
Similar ratio
Find third proportional to 32,427 and 43,740
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.