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Finding the Fourth Proportional to 19,332.60, 28,998.88 and 5,481.60

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Solution

The fourth proportional to 19,332.60, 28,998.88 and 5,481.60 is: 8,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.60 : 28,998.88 = 5,481.60 : x
  2. Step 2: Convert to fraction form
    19,332.60/28,998.88 = 5,481.60/x
  3. Step 3: Cross multiply
    19,332.60x = 28,998.88 × 5,481.60
  4. Step 4: Simplify right side
    19,332.60x = 158,960,260.61
  5. Step 5: Solve for x
    x = 158,960,260.61/19,332.60
  6. Step 6: Final answer
    x = 8,222.39

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1.5x scale

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.