Home / 45,382.56-68,029.38-20,428.89

Finding the Fourth Proportional to 45,382.56, 68,029.38 and 20,428.89

Calculator

Solution

The fourth proportional to 45,382.56, 68,029.38 and 20,428.89 is: 30,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.56 : 68,029.38 = 20,428.89 : x
  2. Step 2: Convert to fraction form
    45,382.56/68,029.38 = 20,428.89/x
  3. Step 3: Cross multiply
    45,382.56x = 68,029.38 × 20,428.89
  4. Step 4: Simplify right side
    45,382.56x = 1,389,764,720.79
  5. Step 5: Solve for x
    x = 1,389,764,720.79/45,382.56
  6. Step 6: Final answer
    x = 30,623.32

Related Problems

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.