Home / 18,543-38,379

Finding the Third Proportional to 18,543 and 38,379

Calculator

Solution

The third proportional to 18,543 and 38,379 is: 79,434.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543 : 38,379 = 38,379 : x
  2. Step 2: Convert to fraction form
    18,543/38,379 = 38,379/x
  3. Step 3: Cross multiply
    18,543x = 38,379 × 38,379
  4. Step 4: Simplify right side
    18,543x = 1,472,947,641
  5. Step 5: Solve for x
    x = 1,472,947,641/18,543
  6. Step 6: Final answer
    x = 79,434.16

Related Problems

Find third proportional to 9,271.50 and 19,189.50
Half scale
Find third proportional to 37,086 and 76,758
Double scale
Find third proportional to 18,545 and 38,383
Similar ratio
Find third proportional to 27,814.50 and 57,568.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.