Home / 20,407-27,458

Finding the Third Proportional to 20,407 and 27,458

Calculator

Solution

The third proportional to 20,407 and 27,458 is: 36,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407 : 27,458 = 27,458 : x
  2. Step 2: Convert to fraction form
    20,407/27,458 = 27,458/x
  3. Step 3: Cross multiply
    20,407x = 27,458 × 27,458
  4. Step 4: Simplify right side
    20,407x = 753,941,764
  5. Step 5: Solve for x
    x = 753,941,764/20,407
  6. Step 6: Final answer
    x = 36,945.25

Related Problems

Find third proportional to 10,203.50 and 13,729
Half scale
Find third proportional to 40,814 and 54,916
Double scale
Find third proportional to 20,409 and 27,461
Similar ratio
Find third proportional to 30,610.50 and 41,187
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.