Home / 19,829.52-29,748.60-8,135.28

Finding the Fourth Proportional to 19,829.52, 29,748.60 and 8,135.28

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Solution

The fourth proportional to 19,829.52, 29,748.60 and 8,135.28 is: 12,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.52 : 29,748.60 = 8,135.28 : x
  2. Step 2: Convert to fraction form
    19,829.52/29,748.60 = 8,135.28/x
  3. Step 3: Cross multiply
    19,829.52x = 29,748.60 × 8,135.28
  4. Step 4: Simplify right side
    19,829.52x = 242,013,190.61
  5. Step 5: Solve for x
    x = 242,013,190.61/19,829.52
  6. Step 6: Final answer
    x = 12,204.69

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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.