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Finding the Fourth Proportional to 29,245.05, 43,870.35 and 8,185.08

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Solution

The fourth proportional to 29,245.05, 43,870.35 and 8,185.08 is: 12,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,245.05 : 43,870.35 = 8,185.08 : x
  2. Step 2: Convert to fraction form
    29,245.05/43,870.35 = 8,185.08/x
  3. Step 3: Cross multiply
    29,245.05x = 43,870.35 × 8,185.08
  4. Step 4: Simplify right side
    29,245.05x = 359,082,324.38
  5. Step 5: Solve for x
    x = 359,082,324.38/29,245.05
  6. Step 6: Final answer
    x = 12,278.40

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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.