Home / 21,276-31,296

Finding the Third Proportional to 21,276 and 31,296

Calculator

Solution

The third proportional to 21,276 and 31,296 is: 46,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276 : 31,296 = 31,296 : x
  2. Step 2: Convert to fraction form
    21,276/31,296 = 31,296/x
  3. Step 3: Cross multiply
    21,276x = 31,296 × 31,296
  4. Step 4: Simplify right side
    21,276x = 979,439,616
  5. Step 5: Solve for x
    x = 979,439,616/21,276
  6. Step 6: Final answer
    x = 46,034.95

Related Problems

Find third proportional to 10,638 and 15,648
Half scale
Find third proportional to 42,552 and 62,592
Double scale
Find third proportional to 21,278 and 31,299
Similar ratio
Find third proportional to 31,914 and 46,944
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.