Home / 13,559.38-20,339.43-4,325.38

Finding the Fourth Proportional to 13,559.38, 20,339.43 and 4,325.38

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Solution

The fourth proportional to 13,559.38, 20,339.43 and 4,325.38 is: 6,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.38 : 20,339.43 = 4,325.38 : x
  2. Step 2: Convert to fraction form
    13,559.38/20,339.43 = 4,325.38/x
  3. Step 3: Cross multiply
    13,559.38x = 20,339.43 × 4,325.38
  4. Step 4: Simplify right side
    13,559.38x = 87,975,640.41
  5. Step 5: Solve for x
    x = 87,975,640.41/13,559.38
  6. Step 6: Final answer
    x = 6,488.18

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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.