Home / 19,993.20-29,977.92-6,845.28

Finding the Fourth Proportional to 19,993.20, 29,977.92 and 6,845.28

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Solution

The fourth proportional to 19,993.20, 29,977.92 and 6,845.28 is: 10,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,993.20 : 29,977.92 = 6,845.28 : x
  2. Step 2: Convert to fraction form
    19,993.20/29,977.92 = 6,845.28/x
  3. Step 3: Cross multiply
    19,993.20x = 29,977.92 × 6,845.28
  4. Step 4: Simplify right side
    19,993.20x = 205,207,256.22
  5. Step 5: Solve for x
    x = 205,207,256.22/19,993.20
  6. Step 6: Final answer
    x = 10,263.85

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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.