Home / 13,629.58-20,442.69-3,635.10

Finding the Fourth Proportional to 13,629.58, 20,442.69 and 3,635.10

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Solution

The fourth proportional to 13,629.58, 20,442.69 and 3,635.10 is: 5,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.58 : 20,442.69 = 3,635.10 : x
  2. Step 2: Convert to fraction form
    13,629.58/20,442.69 = 3,635.10/x
  3. Step 3: Cross multiply
    13,629.58x = 20,442.69 × 3,635.10
  4. Step 4: Simplify right side
    13,629.58x = 74,311,222.42
  5. Step 5: Solve for x
    x = 74,311,222.42/13,629.58
  6. Step 6: Final answer
    x = 5,452.20

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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.