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Finding the Fourth Proportional to 16,885.30, 23,300.56 and 9,331.56

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Solution

The fourth proportional to 16,885.30, 23,300.56 and 9,331.56 is: 12,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.30 : 23,300.56 = 9,331.56 : x
  2. Step 2: Convert to fraction form
    16,885.30/23,300.56 = 9,331.56/x
  3. Step 3: Cross multiply
    16,885.30x = 23,300.56 × 9,331.56
  4. Step 4: Simplify right side
    16,885.30x = 217,430,573.67
  5. Step 5: Solve for x
    x = 217,430,573.67/16,885.30
  6. Step 6: Final answer
    x = 12,876.92

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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.