Home / 28,469.15-39,284.44-16,530.15

Finding the Fourth Proportional to 28,469.15, 39,284.44 and 16,530.15

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Solution

The fourth proportional to 28,469.15, 39,284.44 and 16,530.15 is: 22,809.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.15 : 39,284.44 = 16,530.15 : x
  2. Step 2: Convert to fraction form
    28,469.15/39,284.44 = 16,530.15/x
  3. Step 3: Cross multiply
    28,469.15x = 39,284.44 × 16,530.15
  4. Step 4: Simplify right side
    28,469.15x = 649,377,884.84
  5. Step 5: Solve for x
    x = 649,377,884.84/28,469.15
  6. Step 6: Final answer
    x = 22,809.88

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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.