Home / 20,198.51-30,250.74-19,497.86

Finding the Fourth Proportional to 20,198.51, 30,250.74 and 19,497.86

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Solution

The fourth proportional to 20,198.51, 30,250.74 and 19,497.86 is: 29,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.51 : 30,250.74 = 19,497.86 : x
  2. Step 2: Convert to fraction form
    20,198.51/30,250.74 = 19,497.86/x
  3. Step 3: Cross multiply
    20,198.51x = 30,250.74 × 19,497.86
  4. Step 4: Simplify right side
    20,198.51x = 589,824,693.42
  5. Step 5: Solve for x
    x = 589,824,693.42/20,198.51
  6. Step 6: Final answer
    x = 29,201.40

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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.