Home / 18,138-25,989

Finding the Third Proportional to 18,138 and 25,989

Calculator

Solution

The third proportional to 18,138 and 25,989 is: 37,238.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138 : 25,989 = 25,989 : x
  2. Step 2: Convert to fraction form
    18,138/25,989 = 25,989/x
  3. Step 3: Cross multiply
    18,138x = 25,989 × 25,989
  4. Step 4: Simplify right side
    18,138x = 675,428,121
  5. Step 5: Solve for x
    x = 675,428,121/18,138
  6. Step 6: Final answer
    x = 37,238.29

Related Problems

Find third proportional to 9,069 and 12,994.50
Half scale
Find third proportional to 36,276 and 51,978
Double scale
Find third proportional to 18,140 and 25,992
Similar ratio
Find third proportional to 27,207 and 38,983.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.