Home / 19,148.56-28,560.08-18,816.64

Finding the Fourth Proportional to 19,148.56, 28,560.08 and 18,816.64

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Solution

The fourth proportional to 19,148.56, 28,560.08 and 18,816.64 is: 28,065.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.56 : 28,560.08 = 18,816.64 : x
  2. Step 2: Convert to fraction form
    19,148.56/28,560.08 = 18,816.64/x
  3. Step 3: Cross multiply
    19,148.56x = 28,560.08 × 18,816.64
  4. Step 4: Simplify right side
    19,148.56x = 537,404,743.73
  5. Step 5: Solve for x
    x = 537,404,743.73/19,148.56
  6. Step 6: Final answer
    x = 28,065.02

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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.