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Finding the Fourth Proportional to 28,873, 43,310.76 and 9,153.01

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Solution

The fourth proportional to 28,873, 43,310.76 and 9,153.01 is: 13,729.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873 : 43,310.76 = 9,153.01 : x
  2. Step 2: Convert to fraction form
    28,873/43,310.76 = 9,153.01/x
  3. Step 3: Cross multiply
    28,873x = 43,310.76 × 9,153.01
  4. Step 4: Simplify right side
    28,873x = 396,423,819.39
  5. Step 5: Solve for x
    x = 396,423,819.39/28,873
  6. Step 6: Final answer
    x = 13,729.91

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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.