Home / 39,638-53,987

Finding the Third Proportional to 39,638 and 53,987

Calculator

Solution

The third proportional to 39,638 and 53,987 is: 73,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,638 : 53,987 = 53,987 : x
  2. Step 2: Convert to fraction form
    39,638/53,987 = 53,987/x
  3. Step 3: Cross multiply
    39,638x = 53,987 × 53,987
  4. Step 4: Simplify right side
    39,638x = 2,914,596,169
  5. Step 5: Solve for x
    x = 2,914,596,169/39,638
  6. Step 6: Final answer
    x = 73,530.35

Related Problems

Find third proportional to 19,819 and 26,993.50
Half scale
Find third proportional to 79,276 and 107,974
Double scale
Find third proportional to 39,640 and 53,990
Similar ratio
Find third proportional to 59,457 and 80,980.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.