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Finding the Fourth Proportional to 28,281.64, 39,010.72 and 17,375

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Solution

The fourth proportional to 28,281.64, 39,010.72 and 17,375 is: 23,966.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.64 : 39,010.72 = 17,375 : x
  2. Step 2: Convert to fraction form
    28,281.64/39,010.72 = 17,375/x
  3. Step 3: Cross multiply
    28,281.64x = 39,010.72 × 17,375
  4. Step 4: Simplify right side
    28,281.64x = 677,811,260
  5. Step 5: Solve for x
    x = 677,811,260/28,281.64
  6. Step 6: Final answer
    x = 23,966.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.