Home / 21,136-29,547

Finding the Third Proportional to 21,136 and 29,547

Calculator

Solution

The third proportional to 21,136 and 29,547 is: 41,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136 : 29,547 = 29,547 : x
  2. Step 2: Convert to fraction form
    21,136/29,547 = 29,547/x
  3. Step 3: Cross multiply
    21,136x = 29,547 × 29,547
  4. Step 4: Simplify right side
    21,136x = 873,025,209
  5. Step 5: Solve for x
    x = 873,025,209/21,136
  6. Step 6: Final answer
    x = 41,305.13

Related Problems

Find third proportional to 10,568 and 14,773.50
Half scale
Find third proportional to 42,272 and 59,094
Double scale
Find third proportional to 21,138 and 29,550
Similar ratio
Find third proportional to 31,704 and 44,320.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.