Home / 18,902-39,359

Finding the Third Proportional to 18,902 and 39,359

Calculator

Solution

The third proportional to 18,902 and 39,359 is: 81,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902 : 39,359 = 39,359 : x
  2. Step 2: Convert to fraction form
    18,902/39,359 = 39,359/x
  3. Step 3: Cross multiply
    18,902x = 39,359 × 39,359
  4. Step 4: Simplify right side
    18,902x = 1,549,130,881
  5. Step 5: Solve for x
    x = 1,549,130,881/18,902
  6. Step 6: Final answer
    x = 81,955.92

Related Problems

Find third proportional to 9,451 and 19,679.50
Half scale
Find third proportional to 37,804 and 78,718
Double scale
Find third proportional to 18,904 and 39,363
Similar ratio
Find third proportional to 28,353 and 59,038.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.