Home / 28,918.20-43,442.10-27,737.40

Finding the Fourth Proportional to 28,918.20, 43,442.10 and 27,737.40

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Solution

The fourth proportional to 28,918.20, 43,442.10 and 27,737.40 is: 41,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.20 : 43,442.10 = 27,737.40 : x
  2. Step 2: Convert to fraction form
    28,918.20/43,442.10 = 27,737.40/x
  3. Step 3: Cross multiply
    28,918.20x = 43,442.10 × 27,737.40
  4. Step 4: Simplify right side
    28,918.20x = 1,204,970,904.54
  5. Step 5: Solve for x
    x = 1,204,970,904.54/28,918.20
  6. Step 6: Final answer
    x = 41,668.25

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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.