Home / 28,126.12-42,190.92-10,361.56

Finding the Fourth Proportional to 28,126.12, 42,190.92 and 10,361.56

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Solution

The fourth proportional to 28,126.12, 42,190.92 and 10,361.56 is: 15,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,126.12 : 42,190.92 = 10,361.56 : x
  2. Step 2: Convert to fraction form
    28,126.12/42,190.92 = 10,361.56/x
  3. Step 3: Cross multiply
    28,126.12x = 42,190.92 × 10,361.56
  4. Step 4: Simplify right side
    28,126.12x = 437,163,749.04
  5. Step 5: Solve for x
    x = 437,163,749.04/28,126.12
  6. Step 6: Final answer
    x = 15,542.98

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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.