Home / 20,870.61-31,310.55-6,080.64

Finding the Fourth Proportional to 20,870.61, 31,310.55 and 6,080.64

Calculator

Solution

The fourth proportional to 20,870.61, 31,310.55 and 6,080.64 is: 9,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,870.61 : 31,310.55 = 6,080.64 : x
  2. Step 2: Convert to fraction form
    20,870.61/31,310.55 = 6,080.64/x
  3. Step 3: Cross multiply
    20,870.61x = 31,310.55 × 6,080.64
  4. Step 4: Simplify right side
    20,870.61x = 190,388,182.75
  5. Step 5: Solve for x
    x = 190,388,182.75/20,870.61
  6. Step 6: Final answer
    x = 9,122.31

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.