Home / 19,246.40-28,853.60-8,161.60

Finding the Fourth Proportional to 19,246.40, 28,853.60 and 8,161.60

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Solution

The fourth proportional to 19,246.40, 28,853.60 and 8,161.60 is: 12,235.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.40 : 28,853.60 = 8,161.60 : x
  2. Step 2: Convert to fraction form
    19,246.40/28,853.60 = 8,161.60/x
  3. Step 3: Cross multiply
    19,246.40x = 28,853.60 × 8,161.60
  4. Step 4: Simplify right side
    19,246.40x = 235,491,541.76
  5. Step 5: Solve for x
    x = 235,491,541.76/19,246.40
  6. Step 6: Final answer
    x = 12,235.62

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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.