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Finding the Fourth Proportional to 19,351.08, 29,032.86 and 7,657.80

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Solution

The fourth proportional to 19,351.08, 29,032.86 and 7,657.80 is: 11,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.08 : 29,032.86 = 7,657.80 : x
  2. Step 2: Convert to fraction form
    19,351.08/29,032.86 = 7,657.80/x
  3. Step 3: Cross multiply
    19,351.08x = 29,032.86 × 7,657.80
  4. Step 4: Simplify right side
    19,351.08x = 222,327,835.31
  5. Step 5: Solve for x
    x = 222,327,835.31/19,351.08
  6. Step 6: Final answer
    x = 11,489.17

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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.