Home / 13,628.57-20,442.85-3,633.32

Finding the Fourth Proportional to 13,628.57, 20,442.85 and 3,633.32

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Solution

The fourth proportional to 13,628.57, 20,442.85 and 3,633.32 is: 5,449.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.57 : 20,442.85 = 3,633.32 : x
  2. Step 2: Convert to fraction form
    13,628.57/20,442.85 = 3,633.32/x
  3. Step 3: Cross multiply
    13,628.57x = 20,442.85 × 3,633.32
  4. Step 4: Simplify right side
    13,628.57x = 74,275,397.60
  5. Step 5: Solve for x
    x = 74,275,397.60/13,628.57
  6. Step 6: Final answer
    x = 5,449.98

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Similar ratio
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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.