Home / 31,505-43,399

Finding the Third Proportional to 31,505 and 43,399

Calculator

Solution

The third proportional to 31,505 and 43,399 is: 59,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,505 : 43,399 = 43,399 : x
  2. Step 2: Convert to fraction form
    31,505/43,399 = 43,399/x
  3. Step 3: Cross multiply
    31,505x = 43,399 × 43,399
  4. Step 4: Simplify right side
    31,505x = 1,883,473,201
  5. Step 5: Solve for x
    x = 1,883,473,201/31,505
  6. Step 6: Final answer
    x = 59,783.31

Related Problems

Find third proportional to 15,752.50 and 21,699.50
Half scale
Find third proportional to 63,010 and 86,798
Double scale
Find third proportional to 31,507 and 43,402
Similar ratio
Find third proportional to 47,257.50 and 65,098.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.