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Finding the Fourth Proportional to 28,813, 43,226.80 and 8,036.50

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Solution

The fourth proportional to 28,813, 43,226.80 and 8,036.50 is: 12,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813 : 43,226.80 = 8,036.50 : x
  2. Step 2: Convert to fraction form
    28,813/43,226.80 = 8,036.50/x
  3. Step 3: Cross multiply
    28,813x = 43,226.80 × 8,036.50
  4. Step 4: Simplify right side
    28,813x = 347,392,178.20
  5. Step 5: Solve for x
    x = 347,392,178.20/28,813
  6. Step 6: Final answer
    x = 12,056.79

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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.