Home / 28,540.11-42,817.59-11,004.15

Finding the Fourth Proportional to 28,540.11, 42,817.59 and 11,004.15

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Solution

The fourth proportional to 28,540.11, 42,817.59 and 11,004.15 is: 16,509.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.11 : 42,817.59 = 11,004.15 : x
  2. Step 2: Convert to fraction form
    28,540.11/42,817.59 = 11,004.15/x
  3. Step 3: Cross multiply
    28,540.11x = 42,817.59 × 11,004.15
  4. Step 4: Simplify right side
    28,540.11x = 471,171,183.00
  5. Step 5: Solve for x
    x = 471,171,183.00/28,540.11
  6. Step 6: Final answer
    x = 16,509.09

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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.