Home / 19,721.73-29,582.46-4,930.56

Finding the Fourth Proportional to 19,721.73, 29,582.46 and 4,930.56

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Solution

The fourth proportional to 19,721.73, 29,582.46 and 4,930.56 is: 7,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.73 : 29,582.46 = 4,930.56 : x
  2. Step 2: Convert to fraction form
    19,721.73/29,582.46 = 4,930.56/x
  3. Step 3: Cross multiply
    19,721.73x = 29,582.46 × 4,930.56
  4. Step 4: Simplify right side
    19,721.73x = 145,858,093.98
  5. Step 5: Solve for x
    x = 145,858,093.98/19,721.73
  6. Step 6: Final answer
    x = 7,395.81

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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.