Home / 13,640-31,820

Finding the Third Proportional to 13,640 and 31,820

Calculator

Solution

The third proportional to 13,640 and 31,820 is: 74,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640 : 31,820 = 31,820 : x
  2. Step 2: Convert to fraction form
    13,640/31,820 = 31,820/x
  3. Step 3: Cross multiply
    13,640x = 31,820 × 31,820
  4. Step 4: Simplify right side
    13,640x = 1,012,512,400
  5. Step 5: Solve for x
    x = 1,012,512,400/13,640
  6. Step 6: Final answer
    x = 74,231.11

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.