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Finding the Fourth Proportional to 28,885, 43,327.50 and 10,417

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Solution

The fourth proportional to 28,885, 43,327.50 and 10,417 is: 15,625.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,885 : 43,327.50 = 10,417 : x
  2. Step 2: Convert to fraction form
    28,885/43,327.50 = 10,417/x
  3. Step 3: Cross multiply
    28,885x = 43,327.50 × 10,417
  4. Step 4: Simplify right side
    28,885x = 451,342,567.50
  5. Step 5: Solve for x
    x = 451,342,567.50/28,885
  6. Step 6: Final answer
    x = 15,625.50

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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.