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Finding the Fourth Proportional to 28,310.01, 42,460.21 and 8,583.81

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Solution

The fourth proportional to 28,310.01, 42,460.21 and 8,583.81 is: 12,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.01 : 42,460.21 = 8,583.81 : x
  2. Step 2: Convert to fraction form
    28,310.01/42,460.21 = 8,583.81/x
  3. Step 3: Cross multiply
    28,310.01x = 42,460.21 × 8,583.81
  4. Step 4: Simplify right side
    28,310.01x = 364,470,375.20
  5. Step 5: Solve for x
    x = 364,470,375.20/28,310.01
  6. Step 6: Final answer
    x = 12,874.26

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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.