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Finding the Fourth Proportional to 29,441.60, 44,147.20 and 8,662.40

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Solution

The fourth proportional to 29,441.60, 44,147.20 and 8,662.40 is: 12,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,441.60 : 44,147.20 = 8,662.40 : x
  2. Step 2: Convert to fraction form
    29,441.60/44,147.20 = 8,662.40/x
  3. Step 3: Cross multiply
    29,441.60x = 44,147.20 × 8,662.40
  4. Step 4: Simplify right side
    29,441.60x = 382,420,705.28
  5. Step 5: Solve for x
    x = 382,420,705.28/29,441.60
  6. Step 6: Final answer
    x = 12,989.13

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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.