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Finding the Fourth Proportional to 27,980.64, 41,958.40 and 8,252.28

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Solution

The fourth proportional to 27,980.64, 41,958.40 and 8,252.28 is: 12,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.64 : 41,958.40 = 8,252.28 : x
  2. Step 2: Convert to fraction form
    27,980.64/41,958.40 = 8,252.28/x
  3. Step 3: Cross multiply
    27,980.64x = 41,958.40 × 8,252.28
  4. Step 4: Simplify right side
    27,980.64x = 346,252,465.15
  5. Step 5: Solve for x
    x = 346,252,465.15/27,980.64
  6. Step 6: Final answer
    x = 12,374.72

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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.