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Finding the Fourth Proportional to 19,225.80, 28,829.10 and 8,825.80

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Solution

The fourth proportional to 19,225.80, 28,829.10 and 8,825.80 is: 13,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,225.80 : 28,829.10 = 8,825.80 : x
  2. Step 2: Convert to fraction form
    19,225.80/28,829.10 = 8,825.80/x
  3. Step 3: Cross multiply
    19,225.80x = 28,829.10 × 8,825.80
  4. Step 4: Simplify right side
    19,225.80x = 254,439,870.78
  5. Step 5: Solve for x
    x = 254,439,870.78/19,225.80
  6. Step 6: Final answer
    x = 13,234.29

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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.