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Finding the Fourth Proportional to 30,608.52, 45,858.42 and 12,799.96

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Solution

The fourth proportional to 30,608.52, 45,858.42 and 12,799.96 is: 19,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.52 : 45,858.42 = 12,799.96 : x
  2. Step 2: Convert to fraction form
    30,608.52/45,858.42 = 12,799.96/x
  3. Step 3: Cross multiply
    30,608.52x = 45,858.42 × 12,799.96
  4. Step 4: Simplify right side
    30,608.52x = 586,985,941.66
  5. Step 5: Solve for x
    x = 586,985,941.66/30,608.52
  6. Step 6: Final answer
    x = 19,177.21

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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.