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Finding the Fourth Proportional to 19,229.00, 28,821.42 and 8,818.88

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Solution

The fourth proportional to 19,229.00, 28,821.42 and 8,818.88 is: 13,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.00 : 28,821.42 = 8,818.88 : x
  2. Step 2: Convert to fraction form
    19,229.00/28,821.42 = 8,818.88/x
  3. Step 3: Cross multiply
    19,229.00x = 28,821.42 × 8,818.88
  4. Step 4: Simplify right side
    19,229.00x = 254,172,500.30
  5. Step 5: Solve for x
    x = 254,172,500.30/19,229.00
  6. Step 6: Final answer
    x = 13,218.19

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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.