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Finding the Fourth Proportional to 28,436, 39,240.84 and 16,498.52

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Solution

The fourth proportional to 28,436, 39,240.84 and 16,498.52 is: 22,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436 : 39,240.84 = 16,498.52 : x
  2. Step 2: Convert to fraction form
    28,436/39,240.84 = 16,498.52/x
  3. Step 3: Cross multiply
    28,436x = 39,240.84 × 16,498.52
  4. Step 4: Simplify right side
    28,436x = 647,415,783.56
  5. Step 5: Solve for x
    x = 647,415,783.56/28,436
  6. Step 6: Final answer
    x = 22,767.47

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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.