Home / 28,122.12-42,183.18-7,344

Finding the Fourth Proportional to 28,122.12, 42,183.18 and 7,344

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Solution

The fourth proportional to 28,122.12, 42,183.18 and 7,344 is: 11,016.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,122.12 : 42,183.18 = 7,344 : x
  2. Step 2: Convert to fraction form
    28,122.12/42,183.18 = 7,344/x
  3. Step 3: Cross multiply
    28,122.12x = 42,183.18 × 7,344
  4. Step 4: Simplify right side
    28,122.12x = 309,793,273.92
  5. Step 5: Solve for x
    x = 309,793,273.92/28,122.12
  6. Step 6: Final answer
    x = 11,016.00

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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.