Home / 21,336-28,312

Finding the Third Proportional to 21,336 and 28,312

Calculator

Solution

The third proportional to 21,336 and 28,312 is: 37,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336 : 28,312 = 28,312 : x
  2. Step 2: Convert to fraction form
    21,336/28,312 = 28,312/x
  3. Step 3: Cross multiply
    21,336x = 28,312 × 28,312
  4. Step 4: Simplify right side
    21,336x = 801,569,344
  5. Step 5: Solve for x
    x = 801,569,344/21,336
  6. Step 6: Final answer
    x = 37,568.87

Related Problems

Find third proportional to 10,668 and 14,156
Half scale
Find third proportional to 42,672 and 56,624
Double scale
Find third proportional to 21,338 and 28,315
Similar ratio
Find third proportional to 32,004 and 42,468
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.