Home / 17,615-39,170

Finding the Third Proportional to 17,615 and 39,170

Calculator

Solution

The third proportional to 17,615 and 39,170 is: 87,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615 : 39,170 = 39,170 : x
  2. Step 2: Convert to fraction form
    17,615/39,170 = 39,170/x
  3. Step 3: Cross multiply
    17,615x = 39,170 × 39,170
  4. Step 4: Simplify right side
    17,615x = 1,534,288,900
  5. Step 5: Solve for x
    x = 1,534,288,900/17,615
  6. Step 6: Final answer
    x = 87,101.27

Related Problems

Find third proportional to 8,807.50 and 19,585
Half scale
Find third proportional to 35,230 and 78,340
Double scale
Find third proportional to 17,617 and 39,174
Similar ratio
Find third proportional to 26,422.50 and 58,755
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.