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Finding the Fourth Proportional to 16,912.98, 25,368.89 and 4,432.91

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Solution

The fourth proportional to 16,912.98, 25,368.89 and 4,432.91 is: 6,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.98 : 25,368.89 = 4,432.91 : x
  2. Step 2: Convert to fraction form
    16,912.98/25,368.89 = 4,432.91/x
  3. Step 3: Cross multiply
    16,912.98x = 25,368.89 × 4,432.91
  4. Step 4: Simplify right side
    16,912.98x = 112,457,857.16
  5. Step 5: Solve for x
    x = 112,457,857.16/16,912.98
  6. Step 6: Final answer
    x = 6,649.20

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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.