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Finding the Fourth Proportional to 25,625.60, 38,437.12 and 8,980.48

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Solution

The fourth proportional to 25,625.60, 38,437.12 and 8,980.48 is: 13,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,625.60 : 38,437.12 = 8,980.48 : x
  2. Step 2: Convert to fraction form
    25,625.60/38,437.12 = 8,980.48/x
  3. Step 3: Cross multiply
    25,625.60x = 38,437.12 × 8,980.48
  4. Step 4: Simplify right side
    25,625.60x = 345,183,787.42
  5. Step 5: Solve for x
    x = 345,183,787.42/25,625.60
  6. Step 6: Final answer
    x = 13,470.27

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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.