Home / 28,357-61,815

Finding the Third Proportional to 28,357 and 61,815

Calculator

Solution

The third proportional to 28,357 and 61,815 is: 134,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357 : 61,815 = 61,815 : x
  2. Step 2: Convert to fraction form
    28,357/61,815 = 61,815/x
  3. Step 3: Cross multiply
    28,357x = 61,815 × 61,815
  4. Step 4: Simplify right side
    28,357x = 3,821,094,225
  5. Step 5: Solve for x
    x = 3,821,094,225/28,357
  6. Step 6: Final answer
    x = 134,749.59

Related Problems

Find third proportional to 14,178.50 and 30,907.50
Half scale
Find third proportional to 56,714 and 123,630
Double scale
Find third proportional to 28,359 and 61,819
Similar ratio
Find third proportional to 42,535.50 and 92,722.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.