Home / 15,268-21,782

Finding the Third Proportional to 15,268 and 21,782

Calculator

Solution

The third proportional to 15,268 and 21,782 is: 31,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268 : 21,782 = 21,782 : x
  2. Step 2: Convert to fraction form
    15,268/21,782 = 21,782/x
  3. Step 3: Cross multiply
    15,268x = 21,782 × 21,782
  4. Step 4: Simplify right side
    15,268x = 474,455,524
  5. Step 5: Solve for x
    x = 474,455,524/15,268
  6. Step 6: Final answer
    x = 31,075.16

Related Problems

Find third proportional to 7,634 and 10,891
Half scale
Find third proportional to 30,536 and 43,564
Double scale
Find third proportional to 15,270 and 21,785
Similar ratio
Find third proportional to 22,902 and 32,673
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.