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Finding the Fourth Proportional to 29,313.85, 40,453.02 and 15,885.44

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Solution

The fourth proportional to 29,313.85, 40,453.02 and 15,885.44 is: 21,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,313.85 : 40,453.02 = 15,885.44 : x
  2. Step 2: Convert to fraction form
    29,313.85/40,453.02 = 15,885.44/x
  3. Step 3: Cross multiply
    29,313.85x = 40,453.02 × 15,885.44
  4. Step 4: Simplify right side
    29,313.85x = 642,614,022.03
  5. Step 5: Solve for x
    x = 642,614,022.03/29,313.85
  6. Step 6: Final answer
    x = 21,921.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.