Home / 28,825.70-43,243.01-12,185.79

Finding the Fourth Proportional to 28,825.70, 43,243.01 and 12,185.79

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Solution

The fourth proportional to 28,825.70, 43,243.01 and 12,185.79 is: 18,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.70 : 43,243.01 = 12,185.79 : x
  2. Step 2: Convert to fraction form
    28,825.70/43,243.01 = 12,185.79/x
  3. Step 3: Cross multiply
    28,825.70x = 43,243.01 × 12,185.79
  4. Step 4: Simplify right side
    28,825.70x = 526,950,177.90
  5. Step 5: Solve for x
    x = 526,950,177.90/28,825.70
  6. Step 6: Final answer
    x = 18,280.57

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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.