Home / 27,621.05-41,456.25-19,307.71

Finding the Fourth Proportional to 27,621.05, 41,456.25 and 19,307.71

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Solution

The fourth proportional to 27,621.05, 41,456.25 and 19,307.71 is: 28,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,621.05 : 41,456.25 = 19,307.71 : x
  2. Step 2: Convert to fraction form
    27,621.05/41,456.25 = 19,307.71/x
  3. Step 3: Cross multiply
    27,621.05x = 41,456.25 × 19,307.71
  4. Step 4: Simplify right side
    27,621.05x = 800,425,149.05
  5. Step 5: Solve for x
    x = 800,425,149.05/27,621.05
  6. Step 6: Final answer
    x = 28,978.81

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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.