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Finding the Fourth Proportional to 19,230.20, 28,858.20 and 6,750.20

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Solution

The fourth proportional to 19,230.20, 28,858.20 and 6,750.20 is: 10,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.20 : 28,858.20 = 6,750.20 : x
  2. Step 2: Convert to fraction form
    19,230.20/28,858.20 = 6,750.20/x
  3. Step 3: Cross multiply
    19,230.20x = 28,858.20 × 6,750.20
  4. Step 4: Simplify right side
    19,230.20x = 194,798,621.64
  5. Step 5: Solve for x
    x = 194,798,621.64/19,230.20
  6. Step 6: Final answer
    x = 10,129.83

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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.