Home / 18,806-28,151

Finding the Third Proportional to 18,806 and 28,151

Calculator

Solution

The third proportional to 18,806 and 28,151 is: 42,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806 : 28,151 = 28,151 : x
  2. Step 2: Convert to fraction form
    18,806/28,151 = 28,151/x
  3. Step 3: Cross multiply
    18,806x = 28,151 × 28,151
  4. Step 4: Simplify right side
    18,806x = 792,478,801
  5. Step 5: Solve for x
    x = 792,478,801/18,806
  6. Step 6: Final answer
    x = 42,139.68

Related Problems

Find third proportional to 9,403 and 14,075.50
Half scale
Find third proportional to 37,612 and 56,302
Double scale
Find third proportional to 18,808 and 28,154
Similar ratio
Find third proportional to 28,209 and 42,226.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.