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Finding the Fourth Proportional to 29,040.72, 43,555 and 8,258.64

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Solution

The fourth proportional to 29,040.72, 43,555 and 8,258.64 is: 12,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,040.72 : 43,555 = 8,258.64 : x
  2. Step 2: Convert to fraction form
    29,040.72/43,555 = 8,258.64/x
  3. Step 3: Cross multiply
    29,040.72x = 43,555 × 8,258.64
  4. Step 4: Simplify right side
    29,040.72x = 359,705,065.20
  5. Step 5: Solve for x
    x = 359,705,065.20/29,040.72
  6. Step 6: Final answer
    x = 12,386.23

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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.