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Finding the Fourth Proportional to 28,034.46, 42,044.53 and 8,308.40

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Solution

The fourth proportional to 28,034.46, 42,044.53 and 8,308.40 is: 12,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.46 : 42,044.53 = 8,308.40 : x
  2. Step 2: Convert to fraction form
    28,034.46/42,044.53 = 8,308.40/x
  3. Step 3: Cross multiply
    28,034.46x = 42,044.53 × 8,308.40
  4. Step 4: Simplify right side
    28,034.46x = 349,322,857.39
  5. Step 5: Solve for x
    x = 349,322,857.39/28,034.46
  6. Step 6: Final answer
    x = 12,460.48

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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.