Home / 15,348-21,730

Finding the Third Proportional to 15,348 and 21,730

Calculator

Solution

The third proportional to 15,348 and 21,730 is: 30,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348 : 21,730 = 21,730 : x
  2. Step 2: Convert to fraction form
    15,348/21,730 = 21,730/x
  3. Step 3: Cross multiply
    15,348x = 21,730 × 21,730
  4. Step 4: Simplify right side
    15,348x = 472,192,900
  5. Step 5: Solve for x
    x = 472,192,900/15,348
  6. Step 6: Final answer
    x = 30,765.76

Related Problems

Find third proportional to 7,674 and 10,865
Half scale
Find third proportional to 30,696 and 43,460
Double scale
Find third proportional to 15,350 and 21,733
Similar ratio
Find third proportional to 23,022 and 32,595
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.