Home / 19,105.92-28,658.24-8,717.60

Finding the Fourth Proportional to 19,105.92, 28,658.24 and 8,717.60

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Solution

The fourth proportional to 19,105.92, 28,658.24 and 8,717.60 is: 13,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.92 : 28,658.24 = 8,717.60 : x
  2. Step 2: Convert to fraction form
    19,105.92/28,658.24 = 8,717.60/x
  3. Step 3: Cross multiply
    19,105.92x = 28,658.24 × 8,717.60
  4. Step 4: Simplify right side
    19,105.92x = 249,831,073.02
  5. Step 5: Solve for x
    x = 249,831,073.02/19,105.92
  6. Step 6: Final answer
    x = 13,076.11

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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.