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Finding the Fourth Proportional to 28,004.69, 42,007.03 and 9,536.69

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Solution

The fourth proportional to 28,004.69, 42,007.03 and 9,536.69 is: 14,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.69 : 42,007.03 = 9,536.69 : x
  2. Step 2: Convert to fraction form
    28,004.69/42,007.03 = 9,536.69/x
  3. Step 3: Cross multiply
    28,004.69x = 42,007.03 × 9,536.69
  4. Step 4: Simplify right side
    28,004.69x = 400,608,022.93
  5. Step 5: Solve for x
    x = 400,608,022.93/28,004.69
  6. Step 6: Final answer
    x = 14,305.03

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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.