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Finding the Fourth Proportional to 27,284.80, 40,905.60 and 14,972.80

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Solution

The fourth proportional to 27,284.80, 40,905.60 and 14,972.80 is: 22,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,284.80 : 40,905.60 = 14,972.80 : x
  2. Step 2: Convert to fraction form
    27,284.80/40,905.60 = 14,972.80/x
  3. Step 3: Cross multiply
    27,284.80x = 40,905.60 × 14,972.80
  4. Step 4: Simplify right side
    27,284.80x = 612,471,367.68
  5. Step 5: Solve for x
    x = 612,471,367.68/27,284.80
  6. Step 6: Final answer
    x = 22,447.35

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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.