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Finding the Fourth Proportional to 27,999.64, 41,986.82 and 8,271.32

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Solution

The fourth proportional to 27,999.64, 41,986.82 and 8,271.32 is: 12,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.64 : 41,986.82 = 8,271.32 : x
  2. Step 2: Convert to fraction form
    27,999.64/41,986.82 = 8,271.32/x
  3. Step 3: Cross multiply
    27,999.64x = 41,986.82 × 8,271.32
  4. Step 4: Simplify right side
    27,999.64x = 347,286,424.00
  5. Step 5: Solve for x
    x = 347,286,424.00/27,999.64
  6. Step 6: Final answer
    x = 12,403.25

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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.