Home / 19,120.77-28,682.42-5,080.60

Finding the Fourth Proportional to 19,120.77, 28,682.42 and 5,080.60

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Solution

The fourth proportional to 19,120.77, 28,682.42 and 5,080.60 is: 7,621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.77 : 28,682.42 = 5,080.60 : x
  2. Step 2: Convert to fraction form
    19,120.77/28,682.42 = 5,080.60/x
  3. Step 3: Cross multiply
    19,120.77x = 28,682.42 × 5,080.60
  4. Step 4: Simplify right side
    19,120.77x = 145,723,903.05
  5. Step 5: Solve for x
    x = 145,723,903.05/19,120.77
  6. Step 6: Final answer
    x = 7,621.24

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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.