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Finding the Fourth Proportional to 14,605.20, 19,731.60 and 14,605.20

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Solution

The fourth proportional to 14,605.20, 19,731.60 and 14,605.20 is: 19,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.20 : 19,731.60 = 14,605.20 : x
  2. Step 2: Convert to fraction form
    14,605.20/19,731.60 = 14,605.20/x
  3. Step 3: Cross multiply
    14,605.20x = 19,731.60 × 14,605.20
  4. Step 4: Simplify right side
    14,605.20x = 288,183,964.32
  5. Step 5: Solve for x
    x = 288,183,964.32/14,605.20
  6. Step 6: Final answer
    x = 19,731.60

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These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.