Home / 21,576-28,396

Finding the Third Proportional to 21,576 and 28,396

Calculator

Solution

The third proportional to 21,576 and 28,396 is: 37,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576 : 28,396 = 28,396 : x
  2. Step 2: Convert to fraction form
    21,576/28,396 = 28,396/x
  3. Step 3: Cross multiply
    21,576x = 28,396 × 28,396
  4. Step 4: Simplify right side
    21,576x = 806,332,816
  5. Step 5: Solve for x
    x = 806,332,816/21,576
  6. Step 6: Final answer
    x = 37,371.75

Related Problems

Find third proportional to 10,788 and 14,198
Half scale
Find third proportional to 43,152 and 56,792
Double scale
Find third proportional to 21,578 and 28,399
Similar ratio
Find third proportional to 32,364 and 42,594
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.