Home / 19,056.62-28,578.87-17,812.78

Finding the Fourth Proportional to 19,056.62, 28,578.87 and 17,812.78

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Solution

The fourth proportional to 19,056.62, 28,578.87 and 17,812.78 is: 26,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,056.62 : 28,578.87 = 17,812.78 : x
  2. Step 2: Convert to fraction form
    19,056.62/28,578.87 = 17,812.78/x
  3. Step 3: Cross multiply
    19,056.62x = 28,578.87 × 17,812.78
  4. Step 4: Simplify right side
    19,056.62x = 509,069,123.96
  5. Step 5: Solve for x
    x = 509,069,123.96/19,056.62
  6. Step 6: Final answer
    x = 26,713.51

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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.