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Finding the Fourth Proportional to 19,337.60, 28,982.10 and 9,455.60

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Solution

The fourth proportional to 19,337.60, 28,982.10 and 9,455.60 is: 14,171.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.60 : 28,982.10 = 9,455.60 : x
  2. Step 2: Convert to fraction form
    19,337.60/28,982.10 = 9,455.60/x
  3. Step 3: Cross multiply
    19,337.60x = 28,982.10 × 9,455.60
  4. Step 4: Simplify right side
    19,337.60x = 274,043,144.76
  5. Step 5: Solve for x
    x = 274,043,144.76/19,337.60
  6. Step 6: Final answer
    x = 14,171.52

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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.