Home / 10,422-21,230

Finding the Third Proportional to 10,422 and 21,230

Calculator

Solution

The third proportional to 10,422 and 21,230 is: 43,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422 : 21,230 = 21,230 : x
  2. Step 2: Convert to fraction form
    10,422/21,230 = 21,230/x
  3. Step 3: Cross multiply
    10,422x = 21,230 × 21,230
  4. Step 4: Simplify right side
    10,422x = 450,712,900
  5. Step 5: Solve for x
    x = 450,712,900/10,422
  6. Step 6: Final answer
    x = 43,246.30

Related Problems

Find third proportional to 5,211 and 10,615
Half scale
Find third proportional to 20,844 and 42,460
Double scale
Find third proportional to 10,424 and 21,234
Similar ratio
Find third proportional to 15,633 and 31,845
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.