Home / 27,578.70-41,385.06-12,784.86

Finding the Fourth Proportional to 27,578.70, 41,385.06 and 12,784.86

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Solution

The fourth proportional to 27,578.70, 41,385.06 and 12,784.86 is: 19,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578.70 : 41,385.06 = 12,784.86 : x
  2. Step 2: Convert to fraction form
    27,578.70/41,385.06 = 12,784.86/x
  3. Step 3: Cross multiply
    27,578.70x = 41,385.06 × 12,784.86
  4. Step 4: Simplify right side
    27,578.70x = 529,102,198.19
  5. Step 5: Solve for x
    x = 529,102,198.19/27,578.70
  6. Step 6: Final answer
    x = 19,185.18

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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.