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Finding the Fourth Proportional to 28,434, 39,238.08 and 16,496.52

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Solution

The fourth proportional to 28,434, 39,238.08 and 16,496.52 is: 22,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434 : 39,238.08 = 16,496.52 : x
  2. Step 2: Convert to fraction form
    28,434/39,238.08 = 16,496.52/x
  3. Step 3: Cross multiply
    28,434x = 39,238.08 × 16,496.52
  4. Step 4: Simplify right side
    28,434x = 647,291,771.48
  5. Step 5: Solve for x
    x = 647,291,771.48/28,434
  6. Step 6: Final answer
    x = 22,764.71

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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.