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Finding the Fourth Proportional to 27,990.60, 41,985.94 and 8,282.99

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Solution

The fourth proportional to 27,990.60, 41,985.94 and 8,282.99 is: 12,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.60 : 41,985.94 = 8,282.99 : x
  2. Step 2: Convert to fraction form
    27,990.60/41,985.94 = 8,282.99/x
  3. Step 3: Cross multiply
    27,990.60x = 41,985.94 × 8,282.99
  4. Step 4: Simplify right side
    27,990.60x = 347,769,121.16
  5. Step 5: Solve for x
    x = 347,769,121.16/27,990.60
  6. Step 6: Final answer
    x = 12,424.50

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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.