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Finding the Fourth Proportional to 17,155.60, 25,714.20 and 8,832.40

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Solution

The fourth proportional to 17,155.60, 25,714.20 and 8,832.40 is: 13,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155.60 : 25,714.20 = 8,832.40 : x
  2. Step 2: Convert to fraction form
    17,155.60/25,714.20 = 8,832.40/x
  3. Step 3: Cross multiply
    17,155.60x = 25,714.20 × 8,832.40
  4. Step 4: Simplify right side
    17,155.60x = 227,118,100.08
  5. Step 5: Solve for x
    x = 227,118,100.08/17,155.60
  6. Step 6: Final answer
    x = 13,238.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.