Home / 18,972-28,519

Finding the Third Proportional to 18,972 and 28,519

Calculator

Solution

The third proportional to 18,972 and 28,519 is: 42,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972 : 28,519 = 28,519 : x
  2. Step 2: Convert to fraction form
    18,972/28,519 = 28,519/x
  3. Step 3: Cross multiply
    18,972x = 28,519 × 28,519
  4. Step 4: Simplify right side
    18,972x = 813,333,361
  5. Step 5: Solve for x
    x = 813,333,361/18,972
  6. Step 6: Final answer
    x = 42,870.20

Related Problems

Find third proportional to 9,486 and 14,259.50
Half scale
Find third proportional to 37,944 and 57,038
Double scale
Find third proportional to 18,974 and 28,522
Similar ratio
Find third proportional to 28,458 and 42,778.50
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.