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Finding the Fourth Proportional to 30,409.63, 45,616.84 and 10,692.61

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Solution

The fourth proportional to 30,409.63, 45,616.84 and 10,692.61 is: 16,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,409.63 : 45,616.84 = 10,692.61 : x
  2. Step 2: Convert to fraction form
    30,409.63/45,616.84 = 10,692.61/x
  3. Step 3: Cross multiply
    30,409.63x = 45,616.84 × 10,692.61
  4. Step 4: Simplify right side
    30,409.63x = 487,762,938.78
  5. Step 5: Solve for x
    x = 487,762,938.78/30,409.63
  6. Step 6: Final answer
    x = 16,039.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.