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Finding the Fourth Proportional to 27,107.30, 40,660.68 and 7,385.60

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Solution

The fourth proportional to 27,107.30, 40,660.68 and 7,385.60 is: 11,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.30 : 40,660.68 = 7,385.60 : x
  2. Step 2: Convert to fraction form
    27,107.30/40,660.68 = 7,385.60/x
  3. Step 3: Cross multiply
    27,107.30x = 40,660.68 × 7,385.60
  4. Step 4: Simplify right side
    27,107.30x = 300,303,518.21
  5. Step 5: Solve for x
    x = 300,303,518.21/27,107.30
  6. Step 6: Final answer
    x = 11,078.33

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1.5x scale

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.