Home / 13,625.42-20,429.72-4,738.70

Finding the Fourth Proportional to 13,625.42, 20,429.72 and 4,738.70

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Solution

The fourth proportional to 13,625.42, 20,429.72 and 4,738.70 is: 7,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.42 : 20,429.72 = 4,738.70 : x
  2. Step 2: Convert to fraction form
    13,625.42/20,429.72 = 4,738.70/x
  3. Step 3: Cross multiply
    13,625.42x = 20,429.72 × 4,738.70
  4. Step 4: Simplify right side
    13,625.42x = 96,810,359.31
  5. Step 5: Solve for x
    x = 96,810,359.31/13,625.42
  6. Step 6: Final answer
    x = 7,105.13

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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.