Home / 18,172-39,580

Finding the Third Proportional to 18,172 and 39,580

Calculator

Solution

The third proportional to 18,172 and 39,580 is: 86,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172 : 39,580 = 39,580 : x
  2. Step 2: Convert to fraction form
    18,172/39,580 = 39,580/x
  3. Step 3: Cross multiply
    18,172x = 39,580 × 39,580
  4. Step 4: Simplify right side
    18,172x = 1,566,576,400
  5. Step 5: Solve for x
    x = 1,566,576,400/18,172
  6. Step 6: Final answer
    x = 86,208.25

Related Problems

Find third proportional to 9,086 and 19,790
Half scale
Find third proportional to 36,344 and 79,160
Double scale
Find third proportional to 18,174 and 39,584
Similar ratio
Find third proportional to 27,258 and 59,370
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.