Home / 20,652.24-30,980.40-6,608.74

Finding the Fourth Proportional to 20,652.24, 30,980.40 and 6,608.74

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Solution

The fourth proportional to 20,652.24, 30,980.40 and 6,608.74 is: 9,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.24 : 30,980.40 = 6,608.74 : x
  2. Step 2: Convert to fraction form
    20,652.24/30,980.40 = 6,608.74/x
  3. Step 3: Cross multiply
    20,652.24x = 30,980.40 × 6,608.74
  4. Step 4: Simplify right side
    20,652.24x = 204,741,408.70
  5. Step 5: Solve for x
    x = 204,741,408.70/20,652.24
  6. Step 6: Final answer
    x = 9,913.76

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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.