Home / 19,704.47-29,558.52-7,855.38

Finding the Fourth Proportional to 19,704.47, 29,558.52 and 7,855.38

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Solution

The fourth proportional to 19,704.47, 29,558.52 and 7,855.38 is: 11,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.47 : 29,558.52 = 7,855.38 : x
  2. Step 2: Convert to fraction form
    19,704.47/29,558.52 = 7,855.38/x
  3. Step 3: Cross multiply
    19,704.47x = 29,558.52 × 7,855.38
  4. Step 4: Simplify right side
    19,704.47x = 232,193,406.84
  5. Step 5: Solve for x
    x = 232,193,406.84/19,704.47
  6. Step 6: Final answer
    x = 11,783.80

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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.