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Finding the Fourth Proportional to 29,662.60, 44,496.60 and 12,128.80

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Solution

The fourth proportional to 29,662.60, 44,496.60 and 12,128.80 is: 18,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,662.60 : 44,496.60 = 12,128.80 : x
  2. Step 2: Convert to fraction form
    29,662.60/44,496.60 = 12,128.80/x
  3. Step 3: Cross multiply
    29,662.60x = 44,496.60 × 12,128.80
  4. Step 4: Simplify right side
    29,662.60x = 539,690,362.08
  5. Step 5: Solve for x
    x = 539,690,362.08/29,662.60
  6. Step 6: Final answer
    x = 18,194.30

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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.