Home / 20,579.45-30,868.94-4,997.07

Finding the Fourth Proportional to 20,579.45, 30,868.94 and 4,997.07

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Solution

The fourth proportional to 20,579.45, 30,868.94 and 4,997.07 is: 7,495.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.45 : 30,868.94 = 4,997.07 : x
  2. Step 2: Convert to fraction form
    20,579.45/30,868.94 = 4,997.07/x
  3. Step 3: Cross multiply
    20,579.45x = 30,868.94 × 4,997.07
  4. Step 4: Simplify right side
    20,579.45x = 154,254,229.02
  5. Step 5: Solve for x
    x = 154,254,229.02/20,579.45
  6. Step 6: Final answer
    x = 7,495.55

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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.