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Finding the Fourth Proportional to 28,544.63, 42,821.05 and 8,824.73

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Solution

The fourth proportional to 28,544.63, 42,821.05 and 8,824.73 is: 13,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.63 : 42,821.05 = 8,824.73 : x
  2. Step 2: Convert to fraction form
    28,544.63/42,821.05 = 8,824.73/x
  3. Step 3: Cross multiply
    28,544.63x = 42,821.05 × 8,824.73
  4. Step 4: Simplify right side
    28,544.63x = 377,884,204.57
  5. Step 5: Solve for x
    x = 377,884,204.57/28,544.63
  6. Step 6: Final answer
    x = 13,238.36

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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.