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Finding the Fourth Proportional to 32,428.50, 48,579.81 and 21,301.43

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Solution

The fourth proportional to 32,428.50, 48,579.81 and 21,301.43 is: 31,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,428.50 : 48,579.81 = 21,301.43 : x
  2. Step 2: Convert to fraction form
    32,428.50/48,579.81 = 21,301.43/x
  3. Step 3: Cross multiply
    32,428.50x = 48,579.81 × 21,301.43
  4. Step 4: Simplify right side
    32,428.50x = 1,034,819,179.23
  5. Step 5: Solve for x
    x = 1,034,819,179.23/32,428.50
  6. Step 6: Final answer
    x = 31,910.79

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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.