Home / 21,226-31,218

Finding the Third Proportional to 21,226 and 31,218

Calculator

Solution

The third proportional to 21,226 and 31,218 is: 45,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,226 : 31,218 = 31,218 : x
  2. Step 2: Convert to fraction form
    21,226/31,218 = 31,218/x
  3. Step 3: Cross multiply
    21,226x = 31,218 × 31,218
  4. Step 4: Simplify right side
    21,226x = 974,563,524
  5. Step 5: Solve for x
    x = 974,563,524/21,226
  6. Step 6: Final answer
    x = 45,913.67

Related Problems

Find third proportional to 10,613 and 15,609
Half scale
Find third proportional to 42,452 and 62,436
Double scale
Find third proportional to 21,228 and 31,221
Similar ratio
Find third proportional to 31,839 and 46,827
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.