Home / 14,653.21-21,979.78-3,559.90

Finding the Fourth Proportional to 14,653.21, 21,979.78 and 3,559.90

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Solution

The fourth proportional to 14,653.21, 21,979.78 and 3,559.90 is: 5,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.21 : 21,979.78 = 3,559.90 : x
  2. Step 2: Convert to fraction form
    14,653.21/21,979.78 = 3,559.90/x
  3. Step 3: Cross multiply
    14,653.21x = 21,979.78 × 3,559.90
  4. Step 4: Simplify right side
    14,653.21x = 78,245,818.82
  5. Step 5: Solve for x
    x = 78,245,818.82/14,653.21
  6. Step 6: Final answer
    x = 5,339.84

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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.