Home / 20,653.05-30,979.59-19,601.27

Finding the Fourth Proportional to 20,653.05, 30,979.59 and 19,601.27

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Solution

The fourth proportional to 20,653.05, 30,979.59 and 19,601.27 is: 29,401.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.05 : 30,979.59 = 19,601.27 : x
  2. Step 2: Convert to fraction form
    20,653.05/30,979.59 = 19,601.27/x
  3. Step 3: Cross multiply
    20,653.05x = 30,979.59 × 19,601.27
  4. Step 4: Simplify right side
    20,653.05x = 607,239,308.08
  5. Step 5: Solve for x
    x = 607,239,308.08/20,653.05
  6. Step 6: Final answer
    x = 29,401.92

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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.