Home / 19,200.67-28,778.37-8,658.35

Finding the Fourth Proportional to 19,200.67, 28,778.37 and 8,658.35

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Solution

The fourth proportional to 19,200.67, 28,778.37 and 8,658.35 is: 12,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.67 : 28,778.37 = 8,658.35 : x
  2. Step 2: Convert to fraction form
    19,200.67/28,778.37 = 8,658.35/x
  3. Step 3: Cross multiply
    19,200.67x = 28,778.37 × 8,658.35
  4. Step 4: Simplify right side
    19,200.67x = 249,173,056.00
  5. Step 5: Solve for x
    x = 249,173,056.00/19,200.67
  6. Step 6: Final answer
    x = 12,977.31

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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.