Home / 20,440-31,253

Finding the Third Proportional to 20,440 and 31,253

Calculator

Solution

The third proportional to 20,440 and 31,253 is: 47,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440 : 31,253 = 31,253 : x
  2. Step 2: Convert to fraction form
    20,440/31,253 = 31,253/x
  3. Step 3: Cross multiply
    20,440x = 31,253 × 31,253
  4. Step 4: Simplify right side
    20,440x = 976,750,009
  5. Step 5: Solve for x
    x = 976,750,009/20,440
  6. Step 6: Final answer
    x = 47,786.20

Related Problems

Find third proportional to 10,220 and 15,626.50
Half scale
Find third proportional to 40,880 and 62,506
Double scale
Find third proportional to 20,442 and 31,256
Similar ratio
Find third proportional to 30,660 and 46,879.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.