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Finding the Fourth Proportional to 23,591.56, 32,555.54 and 12,980.20

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Solution

The fourth proportional to 23,591.56, 32,555.54 and 12,980.20 is: 17,912.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,591.56 : 32,555.54 = 12,980.20 : x
  2. Step 2: Convert to fraction form
    23,591.56/32,555.54 = 12,980.20/x
  3. Step 3: Cross multiply
    23,591.56x = 32,555.54 × 12,980.20
  4. Step 4: Simplify right side
    23,591.56x = 422,577,420.31
  5. Step 5: Solve for x
    x = 422,577,420.31/23,591.56
  6. Step 6: Final answer
    x = 17,912.23

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