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Finding the Fourth Proportional to 27,080.30, 40,632.60 and 12,281.60

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Solution

The fourth proportional to 27,080.30, 40,632.60 and 12,281.60 is: 18,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,080.30 : 40,632.60 = 12,281.60 : x
  2. Step 2: Convert to fraction form
    27,080.30/40,632.60 = 12,281.60/x
  3. Step 3: Cross multiply
    27,080.30x = 40,632.60 × 12,281.60
  4. Step 4: Simplify right side
    27,080.30x = 499,033,340.16
  5. Step 5: Solve for x
    x = 499,033,340.16/27,080.30
  6. Step 6: Final answer
    x = 18,427.91

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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.