Home / 13,656-21,772

Finding the Third Proportional to 13,656 and 21,772

Calculator

Solution

The third proportional to 13,656 and 21,772 is: 34,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656 : 21,772 = 21,772 : x
  2. Step 2: Convert to fraction form
    13,656/21,772 = 21,772/x
  3. Step 3: Cross multiply
    13,656x = 21,772 × 21,772
  4. Step 4: Simplify right side
    13,656x = 474,019,984
  5. Step 5: Solve for x
    x = 474,019,984/13,656
  6. Step 6: Final answer
    x = 34,711.48

Related Problems

Find third proportional to 6,828 and 10,886
Half scale
Find third proportional to 27,312 and 43,544
Double scale
Find third proportional to 13,658 and 21,775
Similar ratio
Find third proportional to 20,484 and 32,658
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.