Home / 19,815.55-29,733.81-8,729.98

Finding the Fourth Proportional to 19,815.55, 29,733.81 and 8,729.98

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Solution

The fourth proportional to 19,815.55, 29,733.81 and 8,729.98 is: 13,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.55 : 29,733.81 = 8,729.98 : x
  2. Step 2: Convert to fraction form
    19,815.55/29,733.81 = 8,729.98/x
  3. Step 3: Cross multiply
    19,815.55x = 29,733.81 × 8,729.98
  4. Step 4: Simplify right side
    19,815.55x = 259,575,566.62
  5. Step 5: Solve for x
    x = 259,575,566.62/19,815.55
  6. Step 6: Final answer
    x = 13,099.59

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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.