Home / 19,147.56-28,558.59-18,815.64

Finding the Fourth Proportional to 19,147.56, 28,558.59 and 18,815.64

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Solution

The fourth proportional to 19,147.56, 28,558.59 and 18,815.64 is: 28,063.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.56 : 28,558.59 = 18,815.64 : x
  2. Step 2: Convert to fraction form
    19,147.56/28,558.59 = 18,815.64/x
  3. Step 3: Cross multiply
    19,147.56x = 28,558.59 × 18,815.64
  4. Step 4: Simplify right side
    19,147.56x = 537,348,148.35
  5. Step 5: Solve for x
    x = 537,348,148.35/19,147.56
  6. Step 6: Final answer
    x = 28,063.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.