Home / 28,914.61-39,902.44-16,978.14

Finding the Fourth Proportional to 28,914.61, 39,902.44 and 16,978.14

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Solution

The fourth proportional to 28,914.61, 39,902.44 and 16,978.14 is: 23,430.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.61 : 39,902.44 = 16,978.14 : x
  2. Step 2: Convert to fraction form
    28,914.61/39,902.44 = 16,978.14/x
  3. Step 3: Cross multiply
    28,914.61x = 39,902.44 × 16,978.14
  4. Step 4: Simplify right side
    28,914.61x = 677,469,212.66
  5. Step 5: Solve for x
    x = 677,469,212.66/28,914.61
  6. Step 6: Final answer
    x = 23,430.00

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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.