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Finding the Fourth Proportional to 20,166.60, 30,250.80 and 7,692.60

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Solution

The fourth proportional to 20,166.60, 30,250.80 and 7,692.60 is: 11,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.60 : 30,250.80 = 7,692.60 : x
  2. Step 2: Convert to fraction form
    20,166.60/30,250.80 = 7,692.60/x
  3. Step 3: Cross multiply
    20,166.60x = 30,250.80 × 7,692.60
  4. Step 4: Simplify right side
    20,166.60x = 232,707,304.08
  5. Step 5: Solve for x
    x = 232,707,304.08/20,166.60
  6. Step 6: Final answer
    x = 11,539.24

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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.