Home / 15,330-31,308

Finding the Third Proportional to 15,330 and 31,308

Calculator

Solution

The third proportional to 15,330 and 31,308 is: 63,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330 : 31,308 = 31,308 : x
  2. Step 2: Convert to fraction form
    15,330/31,308 = 31,308/x
  3. Step 3: Cross multiply
    15,330x = 31,308 × 31,308
  4. Step 4: Simplify right side
    15,330x = 980,190,864
  5. Step 5: Solve for x
    x = 980,190,864/15,330
  6. Step 6: Final answer
    x = 63,939.39

Related Problems

Find third proportional to 7,665 and 15,654
Half scale
Find third proportional to 30,660 and 62,616
Double scale
Find third proportional to 15,332 and 31,312
Similar ratio
Find third proportional to 22,995 and 46,962
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.