Home / 13,558.22-20,338.05-4,204.70

Finding the Fourth Proportional to 13,558.22, 20,338.05 and 4,204.70

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Solution

The fourth proportional to 13,558.22, 20,338.05 and 4,204.70 is: 6,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.22 : 20,338.05 = 4,204.70 : x
  2. Step 2: Convert to fraction form
    13,558.22/20,338.05 = 4,204.70/x
  3. Step 3: Cross multiply
    13,558.22x = 20,338.05 × 4,204.70
  4. Step 4: Simplify right side
    13,558.22x = 85,515,398.84
  5. Step 5: Solve for x
    x = 85,515,398.84/13,558.22
  6. Step 6: Final answer
    x = 6,307.27

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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.