Home / 19,772.07-27,285.21-10,819.47

Finding the Fourth Proportional to 19,772.07, 27,285.21 and 10,819.47

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Solution

The fourth proportional to 19,772.07, 27,285.21 and 10,819.47 is: 14,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.07 : 27,285.21 = 10,819.47 : x
  2. Step 2: Convert to fraction form
    19,772.07/27,285.21 = 10,819.47/x
  3. Step 3: Cross multiply
    19,772.07x = 27,285.21 × 10,819.47
  4. Step 4: Simplify right side
    19,772.07x = 295,211,511.04
  5. Step 5: Solve for x
    x = 295,211,511.04/19,772.07
  6. Step 6: Final answer
    x = 14,930.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.