Home / 19,984.92-29,977.23-5,193.78

Finding the Fourth Proportional to 19,984.92, 29,977.23 and 5,193.78

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Solution

The fourth proportional to 19,984.92, 29,977.23 and 5,193.78 is: 7,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.92 : 29,977.23 = 5,193.78 : x
  2. Step 2: Convert to fraction form
    19,984.92/29,977.23 = 5,193.78/x
  3. Step 3: Cross multiply
    19,984.92x = 29,977.23 × 5,193.78
  4. Step 4: Simplify right side
    19,984.92x = 155,695,137.63
  5. Step 5: Solve for x
    x = 155,695,137.63/19,984.92
  6. Step 6: Final answer
    x = 7,790.63

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1.5x scale

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.