Home / 18,319-27,830

Finding the Third Proportional to 18,319 and 27,830

Calculator

Solution

The third proportional to 18,319 and 27,830 is: 42,278.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319 : 27,830 = 27,830 : x
  2. Step 2: Convert to fraction form
    18,319/27,830 = 27,830/x
  3. Step 3: Cross multiply
    18,319x = 27,830 × 27,830
  4. Step 4: Simplify right side
    18,319x = 774,508,900
  5. Step 5: Solve for x
    x = 774,508,900/18,319
  6. Step 6: Final answer
    x = 42,278.99

Related Problems

Find third proportional to 9,159.50 and 13,915
Half scale
Find third proportional to 36,638 and 55,660
Double scale
Find third proportional to 18,321 and 27,833
Similar ratio
Find third proportional to 27,478.50 and 41,745
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.