Home / 27,085.30-40,640.10-12,286.60

Finding the Fourth Proportional to 27,085.30, 40,640.10 and 12,286.60

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Solution

The fourth proportional to 27,085.30, 40,640.10 and 12,286.60 is: 18,435.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,085.30 : 40,640.10 = 12,286.60 : x
  2. Step 2: Convert to fraction form
    27,085.30/40,640.10 = 12,286.60/x
  3. Step 3: Cross multiply
    27,085.30x = 40,640.10 × 12,286.60
  4. Step 4: Simplify right side
    27,085.30x = 499,328,652.66
  5. Step 5: Solve for x
    x = 499,328,652.66/27,085.30
  6. Step 6: Final answer
    x = 18,435.41

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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.