Home / 18,830-29,138

Finding the Third Proportional to 18,830 and 29,138

Calculator

Solution

The third proportional to 18,830 and 29,138 is: 45,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830 : 29,138 = 29,138 : x
  2. Step 2: Convert to fraction form
    18,830/29,138 = 29,138/x
  3. Step 3: Cross multiply
    18,830x = 29,138 × 29,138
  4. Step 4: Simplify right side
    18,830x = 849,023,044
  5. Step 5: Solve for x
    x = 849,023,044/18,830
  6. Step 6: Final answer
    x = 45,088.85

Related Problems

Find third proportional to 9,415 and 14,569
Half scale
Find third proportional to 37,660 and 58,276
Double scale
Find third proportional to 18,832 and 29,141
Similar ratio
Find third proportional to 28,245 and 43,707
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.