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Finding the Fourth Proportional to 19,359, 29,043.36 and 5,508

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Solution

The fourth proportional to 19,359, 29,043.36 and 5,508 is: 8,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359 : 29,043.36 = 5,508 : x
  2. Step 2: Convert to fraction form
    19,359/29,043.36 = 5,508/x
  3. Step 3: Cross multiply
    19,359x = 29,043.36 × 5,508
  4. Step 4: Simplify right side
    19,359x = 159,970,826.88
  5. Step 5: Solve for x
    x = 159,970,826.88/19,359
  6. Step 6: Final answer
    x = 8,263.38

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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.