Home / 20,620.48-30,928.96-6,579.94

Finding the Fourth Proportional to 20,620.48, 30,928.96 and 6,579.94

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Solution

The fourth proportional to 20,620.48, 30,928.96 and 6,579.94 is: 9,869.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.48 : 30,928.96 = 6,579.94 : x
  2. Step 2: Convert to fraction form
    20,620.48/30,928.96 = 6,579.94/x
  3. Step 3: Cross multiply
    20,620.48x = 30,928.96 × 6,579.94
  4. Step 4: Simplify right side
    20,620.48x = 203,510,701.06
  5. Step 5: Solve for x
    x = 203,510,701.06/20,620.48
  6. Step 6: Final answer
    x = 9,869.35

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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.