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Finding the Fourth Proportional to 28,692.73, 43,042.37 and 7,633.64

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Solution

The fourth proportional to 28,692.73, 43,042.37 and 7,633.64 is: 11,451.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.73 : 43,042.37 = 7,633.64 : x
  2. Step 2: Convert to fraction form
    28,692.73/43,042.37 = 7,633.64/x
  3. Step 3: Cross multiply
    28,692.73x = 43,042.37 × 7,633.64
  4. Step 4: Simplify right side
    28,692.73x = 328,570,069.70
  5. Step 5: Solve for x
    x = 328,570,069.70/28,692.73
  6. Step 6: Final answer
    x = 11,451.33

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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.