Home / 28,916.20-43,439.10-27,735.40

Finding the Fourth Proportional to 28,916.20, 43,439.10 and 27,735.40

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Solution

The fourth proportional to 28,916.20, 43,439.10 and 27,735.40 is: 41,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.20 : 43,439.10 = 27,735.40 : x
  2. Step 2: Convert to fraction form
    28,916.20/43,439.10 = 27,735.40/x
  3. Step 3: Cross multiply
    28,916.20x = 43,439.10 × 27,735.40
  4. Step 4: Simplify right side
    28,916.20x = 1,204,800,814.14
  5. Step 5: Solve for x
    x = 1,204,800,814.14/28,916.20
  6. Step 6: Final answer
    x = 41,665.25

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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.