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Finding the Fourth Proportional to 16,380.80, 24,522.60 and 15,419.60

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Solution

The fourth proportional to 16,380.80, 24,522.60 and 15,419.60 is: 23,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,380.80 : 24,522.60 = 15,419.60 : x
  2. Step 2: Convert to fraction form
    16,380.80/24,522.60 = 15,419.60/x
  3. Step 3: Cross multiply
    16,380.80x = 24,522.60 × 15,419.60
  4. Step 4: Simplify right side
    16,380.80x = 378,128,682.96
  5. Step 5: Solve for x
    x = 378,128,682.96/16,380.80
  6. Step 6: Final answer
    x = 23,083.65

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1.5x scale

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.