Home / 28,791.01-43,168.05-12,146.50

Finding the Fourth Proportional to 28,791.01, 43,168.05 and 12,146.50

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Solution

The fourth proportional to 28,791.01, 43,168.05 and 12,146.50 is: 18,211.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.01 : 43,168.05 = 12,146.50 : x
  2. Step 2: Convert to fraction form
    28,791.01/43,168.05 = 12,146.50/x
  3. Step 3: Cross multiply
    28,791.01x = 43,168.05 × 12,146.50
  4. Step 4: Simplify right side
    28,791.01x = 524,340,719.33
  5. Step 5: Solve for x
    x = 524,340,719.33/28,791.01
  6. Step 6: Final answer
    x = 18,211.96

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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.