Home / 20,470-31,299

Finding the Third Proportional to 20,470 and 31,299

Calculator

Solution

The third proportional to 20,470 and 31,299 is: 47,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470 : 31,299 = 31,299 : x
  2. Step 2: Convert to fraction form
    20,470/31,299 = 31,299/x
  3. Step 3: Cross multiply
    20,470x = 31,299 × 31,299
  4. Step 4: Simplify right side
    20,470x = 979,627,401
  5. Step 5: Solve for x
    x = 979,627,401/20,470
  6. Step 6: Final answer
    x = 47,856.74

Related Problems

Find third proportional to 10,235 and 15,649.50
Half scale
Find third proportional to 40,940 and 62,598
Double scale
Find third proportional to 20,472 and 31,302
Similar ratio
Find third proportional to 30,705 and 46,948.50
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.