Home / 19,579.89-29,369.70-4,789.02

Finding the Fourth Proportional to 19,579.89, 29,369.70 and 4,789.02

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Solution

The fourth proportional to 19,579.89, 29,369.70 and 4,789.02 is: 7,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.89 : 29,369.70 = 4,789.02 : x
  2. Step 2: Convert to fraction form
    19,579.89/29,369.70 = 4,789.02/x
  3. Step 3: Cross multiply
    19,579.89x = 29,369.70 × 4,789.02
  4. Step 4: Simplify right side
    19,579.89x = 140,652,080.69
  5. Step 5: Solve for x
    x = 140,652,080.69/19,579.89
  6. Step 6: Final answer
    x = 7,183.50

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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.