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Finding the Fourth Proportional to 14,787.60, 22,181.40 and 14,204.40

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Solution

The fourth proportional to 14,787.60, 22,181.40 and 14,204.40 is: 21,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.60 : 22,181.40 = 14,204.40 : x
  2. Step 2: Convert to fraction form
    14,787.60/22,181.40 = 14,204.40/x
  3. Step 3: Cross multiply
    14,787.60x = 22,181.40 × 14,204.40
  4. Step 4: Simplify right side
    14,787.60x = 315,073,478.16
  5. Step 5: Solve for x
    x = 315,073,478.16/14,787.60
  6. Step 6: Final answer
    x = 21,306.60

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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.