Home / 14,651.78-21,977.48-3,558.58

Finding the Fourth Proportional to 14,651.78, 21,977.48 and 3,558.58

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Solution

The fourth proportional to 14,651.78, 21,977.48 and 3,558.58 is: 5,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.78 : 21,977.48 = 3,558.58 : x
  2. Step 2: Convert to fraction form
    14,651.78/21,977.48 = 3,558.58/x
  3. Step 3: Cross multiply
    14,651.78x = 21,977.48 × 3,558.58
  4. Step 4: Simplify right side
    14,651.78x = 78,208,620.78
  5. Step 5: Solve for x
    x = 78,208,620.78/14,651.78
  6. Step 6: Final answer
    x = 5,337.82

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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.