Home / 18,770-28,230

Finding the Third Proportional to 18,770 and 28,230

Calculator

Solution

The third proportional to 18,770 and 28,230 is: 42,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770 : 28,230 = 28,230 : x
  2. Step 2: Convert to fraction form
    18,770/28,230 = 28,230/x
  3. Step 3: Cross multiply
    18,770x = 28,230 × 28,230
  4. Step 4: Simplify right side
    18,770x = 796,932,900
  5. Step 5: Solve for x
    x = 796,932,900/18,770
  6. Step 6: Final answer
    x = 42,457.80

Related Problems

Find third proportional to 9,385 and 14,115
Half scale
Find third proportional to 37,540 and 56,460
Double scale
Find third proportional to 18,772 and 28,233
Similar ratio
Find third proportional to 28,155 and 42,345
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.