Home / 19,126.89-28,653.21-15,185.43

Finding the Fourth Proportional to 19,126.89, 28,653.21 and 15,185.43

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Solution

The fourth proportional to 19,126.89, 28,653.21 and 15,185.43 is: 22,748.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.89 : 28,653.21 = 15,185.43 : x
  2. Step 2: Convert to fraction form
    19,126.89/28,653.21 = 15,185.43/x
  3. Step 3: Cross multiply
    19,126.89x = 28,653.21 × 15,185.43
  4. Step 4: Simplify right side
    19,126.89x = 435,111,314.73
  5. Step 5: Solve for x
    x = 435,111,314.73/19,126.89
  6. Step 6: Final answer
    x = 22,748.67

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.