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Finding the Fourth Proportional to 28,662.56, 43,003.92 and 8,946.08

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Solution

The fourth proportional to 28,662.56, 43,003.92 and 8,946.08 is: 13,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.56 : 43,003.92 = 8,946.08 : x
  2. Step 2: Convert to fraction form
    28,662.56/43,003.92 = 8,946.08/x
  3. Step 3: Cross multiply
    28,662.56x = 43,003.92 × 8,946.08
  4. Step 4: Simplify right side
    28,662.56x = 384,716,508.63
  5. Step 5: Solve for x
    x = 384,716,508.63/28,662.56
  6. Step 6: Final answer
    x = 13,422.27

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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.