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Finding the Fourth Proportional to 21,504.48, 32,258.79 and 8,357.88

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Solution

The fourth proportional to 21,504.48, 32,258.79 and 8,357.88 is: 12,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.48 : 32,258.79 = 8,357.88 : x
  2. Step 2: Convert to fraction form
    21,504.48/32,258.79 = 8,357.88/x
  3. Step 3: Cross multiply
    21,504.48x = 32,258.79 × 8,357.88
  4. Step 4: Simplify right side
    21,504.48x = 269,615,095.77
  5. Step 5: Solve for x
    x = 269,615,095.77/21,504.48
  6. Step 6: Final answer
    x = 12,537.62

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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.