Home / 18,140-38,460

Finding the Third Proportional to 18,140 and 38,460

Calculator

Solution

The third proportional to 18,140 and 38,460 is: 81,541.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140 : 38,460 = 38,460 : x
  2. Step 2: Convert to fraction form
    18,140/38,460 = 38,460/x
  3. Step 3: Cross multiply
    18,140x = 38,460 × 38,460
  4. Step 4: Simplify right side
    18,140x = 1,479,171,600
  5. Step 5: Solve for x
    x = 1,479,171,600/18,140
  6. Step 6: Final answer
    x = 81,541.98

Related Problems

Find third proportional to 9,070 and 19,230
Half scale
Find third proportional to 36,280 and 76,920
Double scale
Find third proportional to 18,142 and 38,464
Similar ratio
Find third proportional to 27,210 and 57,690
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.