Home / 18,980-28,486

Finding the Third Proportional to 18,980 and 28,486

Calculator

Solution

The third proportional to 18,980 and 28,486 is: 42,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980 : 28,486 = 28,486 : x
  2. Step 2: Convert to fraction form
    18,980/28,486 = 28,486/x
  3. Step 3: Cross multiply
    18,980x = 28,486 × 28,486
  4. Step 4: Simplify right side
    18,980x = 811,452,196
  5. Step 5: Solve for x
    x = 811,452,196/18,980
  6. Step 6: Final answer
    x = 42,753.01

Related Problems

Find third proportional to 9,490 and 14,243
Half scale
Find third proportional to 37,960 and 56,972
Double scale
Find third proportional to 18,982 and 28,489
Similar ratio
Find third proportional to 28,470 and 42,729
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.