Home / 13,959.31-20,935.72-4,095.94

Finding the Fourth Proportional to 13,959.31, 20,935.72 and 4,095.94

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Solution

The fourth proportional to 13,959.31, 20,935.72 and 4,095.94 is: 6,142.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,959.31 : 20,935.72 = 4,095.94 : x
  2. Step 2: Convert to fraction form
    13,959.31/20,935.72 = 4,095.94/x
  3. Step 3: Cross multiply
    13,959.31x = 20,935.72 × 4,095.94
  4. Step 4: Simplify right side
    13,959.31x = 85,751,452.98
  5. Step 5: Solve for x
    x = 85,751,452.98/13,959.31
  6. Step 6: Final answer
    x = 6,142.96

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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.