Home / 15,308-31,579

Finding the Third Proportional to 15,308 and 31,579

Calculator

Solution

The third proportional to 15,308 and 31,579 is: 65,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308 : 31,579 = 31,579 : x
  2. Step 2: Convert to fraction form
    15,308/31,579 = 31,579/x
  3. Step 3: Cross multiply
    15,308x = 31,579 × 31,579
  4. Step 4: Simplify right side
    15,308x = 997,233,241
  5. Step 5: Solve for x
    x = 997,233,241/15,308
  6. Step 6: Final answer
    x = 65,144.58

Related Problems

Find third proportional to 7,654 and 15,789.50
Half scale
Find third proportional to 30,616 and 63,158
Double scale
Find third proportional to 15,310 and 31,583
Similar ratio
Find third proportional to 22,962 and 47,368.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.