Home / 28,825.95-43,243.38-12,186.04

Finding the Fourth Proportional to 28,825.95, 43,243.38 and 12,186.04

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Solution

The fourth proportional to 28,825.95, 43,243.38 and 12,186.04 is: 18,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.95 : 43,243.38 = 12,186.04 : x
  2. Step 2: Convert to fraction form
    28,825.95/43,243.38 = 12,186.04/x
  3. Step 3: Cross multiply
    28,825.95x = 43,243.38 × 12,186.04
  4. Step 4: Simplify right side
    28,825.95x = 526,965,558.42
  5. Step 5: Solve for x
    x = 526,965,558.42/28,825.95
  6. Step 6: Final answer
    x = 18,280.94

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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.