Home / 13,930.45-20,896.38-4,070.52

Finding the Fourth Proportional to 13,930.45, 20,896.38 and 4,070.52

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Solution

The fourth proportional to 13,930.45, 20,896.38 and 4,070.52 is: 6,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.45 : 20,896.38 = 4,070.52 : x
  2. Step 2: Convert to fraction form
    13,930.45/20,896.38 = 4,070.52/x
  3. Step 3: Cross multiply
    13,930.45x = 20,896.38 × 4,070.52
  4. Step 4: Simplify right side
    13,930.45x = 85,059,132.72
  5. Step 5: Solve for x
    x = 85,059,132.72/13,930.45
  6. Step 6: Final answer
    x = 6,105.99

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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.