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Finding the Fourth Proportional to 16,581.60, 24,843.60 and 13,989.60

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Solution

The fourth proportional to 16,581.60, 24,843.60 and 13,989.60 is: 20,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,581.60 : 24,843.60 = 13,989.60 : x
  2. Step 2: Convert to fraction form
    16,581.60/24,843.60 = 13,989.60/x
  3. Step 3: Cross multiply
    16,581.60x = 24,843.60 × 13,989.60
  4. Step 4: Simplify right side
    16,581.60x = 347,552,026.56
  5. Step 5: Solve for x
    x = 347,552,026.56/16,581.60
  6. Step 6: Final answer
    x = 20,960.10

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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.