Home / 15,738-18,042

Finding the Third Proportional to 15,738 and 18,042

Calculator

Solution

The third proportional to 15,738 and 18,042 is: 20,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,738 : 18,042 = 18,042 : x
  2. Step 2: Convert to fraction form
    15,738/18,042 = 18,042/x
  3. Step 3: Cross multiply
    15,738x = 18,042 × 18,042
  4. Step 4: Simplify right side
    15,738x = 325,513,764
  5. Step 5: Solve for x
    x = 325,513,764/15,738
  6. Step 6: Final answer
    x = 20,683.30

Related Problems

Find third proportional to 7,869 and 9,021
Half scale
Find third proportional to 31,476 and 36,084
Double scale
Find third proportional to 15,740 and 18,044
Similar ratio
Find third proportional to 23,607 and 27,063
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.