Home / 27,112.94-40,670.85-8,405.90

Finding the Fourth Proportional to 27,112.94, 40,670.85 and 8,405.90

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Solution

The fourth proportional to 27,112.94, 40,670.85 and 8,405.90 is: 12,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,112.94 : 40,670.85 = 8,405.90 : x
  2. Step 2: Convert to fraction form
    27,112.94/40,670.85 = 8,405.90/x
  3. Step 3: Cross multiply
    27,112.94x = 40,670.85 × 8,405.90
  4. Step 4: Simplify right side
    27,112.94x = 341,874,894.66
  5. Step 5: Solve for x
    x = 341,874,894.66/27,112.94
  6. Step 6: Final answer
    x = 12,609.29

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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.