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Finding the Fourth Proportional to 34,425.78, 47,508.03 and 19,321.71

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Solution

The fourth proportional to 34,425.78, 47,508.03 and 19,321.71 is: 26,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,425.78 : 47,508.03 = 19,321.71 : x
  2. Step 2: Convert to fraction form
    34,425.78/47,508.03 = 19,321.71/x
  3. Step 3: Cross multiply
    34,425.78x = 47,508.03 × 19,321.71
  4. Step 4: Simplify right side
    34,425.78x = 917,936,378.33
  5. Step 5: Solve for x
    x = 917,936,378.33/34,425.78
  6. Step 6: Final answer
    x = 26,664.21

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1.5x scale

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.