Home / 28,470-43,989

Finding the Third Proportional to 28,470 and 43,989

Calculator

Solution

The third proportional to 28,470 and 43,989 is: 67,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470 : 43,989 = 43,989 : x
  2. Step 2: Convert to fraction form
    28,470/43,989 = 43,989/x
  3. Step 3: Cross multiply
    28,470x = 43,989 × 43,989
  4. Step 4: Simplify right side
    28,470x = 1,935,032,121
  5. Step 5: Solve for x
    x = 1,935,032,121/28,470
  6. Step 6: Final answer
    x = 67,967.41

Related Problems

Find third proportional to 14,235 and 21,994.50
Half scale
Find third proportional to 56,940 and 87,978
Double scale
Find third proportional to 28,472 and 43,992
Similar ratio
Find third proportional to 42,705 and 65,983.50
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.