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Finding the Fourth Proportional to 38,028, 57,065.04 and 16,140

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Solution

The fourth proportional to 38,028, 57,065.04 and 16,140 is: 24,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,028 : 57,065.04 = 16,140 : x
  2. Step 2: Convert to fraction form
    38,028/57,065.04 = 16,140/x
  3. Step 3: Cross multiply
    38,028x = 57,065.04 × 16,140
  4. Step 4: Simplify right side
    38,028x = 921,029,745.60
  5. Step 5: Solve for x
    x = 921,029,745.60/38,028
  6. Step 6: Final answer
    x = 24,219.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.