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Finding the Fourth Proportional to 28,994.60, 43,495.67 and 8,218.64

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Solution

The fourth proportional to 28,994.60, 43,495.67 and 8,218.64 is: 12,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.60 : 43,495.67 = 8,218.64 : x
  2. Step 2: Convert to fraction form
    28,994.60/43,495.67 = 8,218.64/x
  3. Step 3: Cross multiply
    28,994.60x = 43,495.67 × 8,218.64
  4. Step 4: Simplify right side
    28,994.60x = 357,475,056.36
  5. Step 5: Solve for x
    x = 357,475,056.36/28,994.60
  6. Step 6: Final answer
    x = 12,329.02

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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.