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Finding the Fourth Proportional to 19,299.60, 28,998 and 12,282.84

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Solution

The fourth proportional to 19,299.60, 28,998 and 12,282.84 is: 18,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.60 : 28,998 = 12,282.84 : x
  2. Step 2: Convert to fraction form
    19,299.60/28,998 = 12,282.84/x
  3. Step 3: Cross multiply
    19,299.60x = 28,998 × 12,282.84
  4. Step 4: Simplify right side
    19,299.60x = 356,177,794.32
  5. Step 5: Solve for x
    x = 356,177,794.32/19,299.60
  6. Step 6: Final answer
    x = 18,455.19

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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.