Home / 30,980-47,400

Finding the Third Proportional to 30,980 and 47,400

Calculator

Solution

The third proportional to 30,980 and 47,400 is: 72,522.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,980 : 47,400 = 47,400 : x
  2. Step 2: Convert to fraction form
    30,980/47,400 = 47,400/x
  3. Step 3: Cross multiply
    30,980x = 47,400 × 47,400
  4. Step 4: Simplify right side
    30,980x = 2,246,760,000
  5. Step 5: Solve for x
    x = 2,246,760,000/30,980
  6. Step 6: Final answer
    x = 72,522.92

Related Problems

Find third proportional to 15,490 and 23,700
Half scale
Find third proportional to 61,960 and 94,800
Double scale
Find third proportional to 30,982 and 47,403
Similar ratio
Find third proportional to 46,470 and 71,100
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.