Home / 19,821-29,020.50

Finding the Third Proportional to 19,821 and 29,020.50

Calculator

Solution

The third proportional to 19,821 and 29,020.50 is: 42,489.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821 : 29,020.50 = 29,020.50 : x
  2. Step 2: Convert to fraction form
    19,821/29,020.50 = 29,020.50/x
  3. Step 3: Cross multiply
    19,821x = 29,020.50 × 29,020.50
  4. Step 4: Simplify right side
    19,821x = 842,189,420.25
  5. Step 5: Solve for x
    x = 842,189,420.25/19,821
  6. Step 6: Final answer
    x = 42,489.75

Related Problems

Find third proportional to 9,910.50 and 14,510.25
Half scale
Find third proportional to 39,642 and 58,041
Double scale
Find third proportional to 19,823 and 29,023
Similar ratio
Find third proportional to 29,731.50 and 43,530.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.