Home / 20,325.98-30,488.70-7,176.44

Finding the Fourth Proportional to 20,325.98, 30,488.70 and 7,176.44

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Solution

The fourth proportional to 20,325.98, 30,488.70 and 7,176.44 is: 10,764.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.98 : 30,488.70 = 7,176.44 : x
  2. Step 2: Convert to fraction form
    20,325.98/30,488.70 = 7,176.44/x
  3. Step 3: Cross multiply
    20,325.98x = 30,488.70 × 7,176.44
  4. Step 4: Simplify right side
    20,325.98x = 218,800,326.23
  5. Step 5: Solve for x
    x = 218,800,326.23/20,325.98
  6. Step 6: Final answer
    x = 10,764.56

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1.5x scale

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.