Home / 31,278-47,187

Finding the Third Proportional to 31,278 and 47,187

Calculator

Solution

The third proportional to 31,278 and 47,187 is: 71,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278 : 47,187 = 47,187 : x
  2. Step 2: Convert to fraction form
    31,278/47,187 = 47,187/x
  3. Step 3: Cross multiply
    31,278x = 47,187 × 47,187
  4. Step 4: Simplify right side
    31,278x = 2,226,612,969
  5. Step 5: Solve for x
    x = 2,226,612,969/31,278
  6. Step 6: Final answer
    x = 71,187.83

Related Problems

Find third proportional to 15,639 and 23,593.50
Half scale
Find third proportional to 62,556 and 94,374
Double scale
Find third proportional to 31,280 and 47,190
Similar ratio
Find third proportional to 46,917 and 70,780.50
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.