Home / 30,515-62,913

Finding the Third Proportional to 30,515 and 62,913

Calculator

Solution

The third proportional to 30,515 and 62,913 is: 129,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,515 : 62,913 = 62,913 : x
  2. Step 2: Convert to fraction form
    30,515/62,913 = 62,913/x
  3. Step 3: Cross multiply
    30,515x = 62,913 × 62,913
  4. Step 4: Simplify right side
    30,515x = 3,958,045,569
  5. Step 5: Solve for x
    x = 3,958,045,569/30,515
  6. Step 6: Final answer
    x = 129,708.19

Related Problems

Find third proportional to 15,257.50 and 31,456.50
Half scale
Find third proportional to 61,030 and 125,826
Double scale
Find third proportional to 30,517 and 62,917
Similar ratio
Find third proportional to 45,772.50 and 94,369.50
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.