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Finding the Fourth Proportional to 28,842, 43,241.94 and 19,458.69

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Solution

The fourth proportional to 28,842, 43,241.94 and 19,458.69 is: 29,173.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,842 : 43,241.94 = 19,458.69 : x
  2. Step 2: Convert to fraction form
    28,842/43,241.94 = 19,458.69/x
  3. Step 3: Cross multiply
    28,842x = 43,241.94 × 19,458.69
  4. Step 4: Simplify right side
    28,842x = 841,431,505.46
  5. Step 5: Solve for x
    x = 841,431,505.46/28,842
  6. Step 6: Final answer
    x = 29,173.83

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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.