Home / 19,135.94-28,706.07-8,040.56

Finding the Fourth Proportional to 19,135.94, 28,706.07 and 8,040.56

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Solution

The fourth proportional to 19,135.94, 28,706.07 and 8,040.56 is: 12,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.94 : 28,706.07 = 8,040.56 : x
  2. Step 2: Convert to fraction form
    19,135.94/28,706.07 = 8,040.56/x
  3. Step 3: Cross multiply
    19,135.94x = 28,706.07 × 8,040.56
  4. Step 4: Simplify right side
    19,135.94x = 230,812,878.20
  5. Step 5: Solve for x
    x = 230,812,878.20/19,135.94
  6. Step 6: Final answer
    x = 12,061.75

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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.