Home / 21,000-45,060

Finding the Third Proportional to 21,000 and 45,060

Calculator

Solution

The third proportional to 21,000 and 45,060 is: 96,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000 : 45,060 = 45,060 : x
  2. Step 2: Convert to fraction form
    21,000/45,060 = 45,060/x
  3. Step 3: Cross multiply
    21,000x = 45,060 × 45,060
  4. Step 4: Simplify right side
    21,000x = 2,030,403,600
  5. Step 5: Solve for x
    x = 2,030,403,600/21,000
  6. Step 6: Final answer
    x = 96,685.89

Related Problems

Find third proportional to 10,500 and 22,530
Half scale
Find third proportional to 42,000 and 90,120
Double scale
Find third proportional to 21,002 and 45,064
Similar ratio
Find third proportional to 31,500 and 67,590
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.