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Finding the Fourth Proportional to 27,879.21, 41,823.95 and 9,160.29

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Solution

The fourth proportional to 27,879.21, 41,823.95 and 9,160.29 is: 13,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.21 : 41,823.95 = 9,160.29 : x
  2. Step 2: Convert to fraction form
    27,879.21/41,823.95 = 9,160.29/x
  3. Step 3: Cross multiply
    27,879.21x = 41,823.95 × 9,160.29
  4. Step 4: Simplify right side
    27,879.21x = 383,119,465.14
  5. Step 5: Solve for x
    x = 383,119,465.14/27,879.21
  6. Step 6: Final answer
    x = 13,742.12

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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.