Home / 18,258-27,489

Finding the Third Proportional to 18,258 and 27,489

Calculator

Solution

The third proportional to 18,258 and 27,489 is: 41,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258 : 27,489 = 27,489 : x
  2. Step 2: Convert to fraction form
    18,258/27,489 = 27,489/x
  3. Step 3: Cross multiply
    18,258x = 27,489 × 27,489
  4. Step 4: Simplify right side
    18,258x = 755,645,121
  5. Step 5: Solve for x
    x = 755,645,121/18,258
  6. Step 6: Final answer
    x = 41,387.07

Related Problems

Find third proportional to 9,129 and 13,744.50
Half scale
Find third proportional to 36,516 and 54,978
Double scale
Find third proportional to 18,260 and 27,492
Similar ratio
Find third proportional to 27,387 and 41,233.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.