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Finding the Fourth Proportional to 16,876.80, 25,315.20 and 13,596.30

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Solution

The fourth proportional to 16,876.80, 25,315.20 and 13,596.30 is: 20,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,876.80 : 25,315.20 = 13,596.30 : x
  2. Step 2: Convert to fraction form
    16,876.80/25,315.20 = 13,596.30/x
  3. Step 3: Cross multiply
    16,876.80x = 25,315.20 × 13,596.30
  4. Step 4: Simplify right side
    16,876.80x = 344,193,053.76
  5. Step 5: Solve for x
    x = 344,193,053.76/16,876.80
  6. Step 6: Final answer
    x = 20,394.45

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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.