Home / 20,176.70-30,269.10-6,137.60

Finding the Fourth Proportional to 20,176.70, 30,269.10 and 6,137.60

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Solution

The fourth proportional to 20,176.70, 30,269.10 and 6,137.60 is: 9,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.70 : 30,269.10 = 6,137.60 : x
  2. Step 2: Convert to fraction form
    20,176.70/30,269.10 = 6,137.60/x
  3. Step 3: Cross multiply
    20,176.70x = 30,269.10 × 6,137.60
  4. Step 4: Simplify right side
    20,176.70x = 185,779,628.16
  5. Step 5: Solve for x
    x = 185,779,628.16/20,176.70
  6. Step 6: Final answer
    x = 9,207.63

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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.