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Finding the Fourth Proportional to 25,785.36, 38,638.80 and 11,737.44

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Solution

The fourth proportional to 25,785.36, 38,638.80 and 11,737.44 is: 17,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.36 : 38,638.80 = 11,737.44 : x
  2. Step 2: Convert to fraction form
    25,785.36/38,638.80 = 11,737.44/x
  3. Step 3: Cross multiply
    25,785.36x = 38,638.80 × 11,737.44
  4. Step 4: Simplify right side
    25,785.36x = 453,520,596.67
  5. Step 5: Solve for x
    x = 453,520,596.67/25,785.36
  6. Step 6: Final answer
    x = 17,588.30

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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.