Home / 20,583.44-28,404.84-11,630.64

Finding the Fourth Proportional to 20,583.44, 28,404.84 and 11,630.64

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Solution

The fourth proportional to 20,583.44, 28,404.84 and 11,630.64 is: 16,050.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.44 : 28,404.84 = 11,630.64 : x
  2. Step 2: Convert to fraction form
    20,583.44/28,404.84 = 11,630.64/x
  3. Step 3: Cross multiply
    20,583.44x = 28,404.84 × 11,630.64
  4. Step 4: Simplify right side
    20,583.44x = 330,366,468.30
  5. Step 5: Solve for x
    x = 330,366,468.30/20,583.44
  6. Step 6: Final answer
    x = 16,050.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.