Home / 20,408.38-30,595.70-7,755.52

Finding the Fourth Proportional to 20,408.38, 30,595.70 and 7,755.52

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Solution

The fourth proportional to 20,408.38, 30,595.70 and 7,755.52 is: 11,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.38 : 30,595.70 = 7,755.52 : x
  2. Step 2: Convert to fraction form
    20,408.38/30,595.70 = 7,755.52/x
  3. Step 3: Cross multiply
    20,408.38x = 30,595.70 × 7,755.52
  4. Step 4: Simplify right side
    20,408.38x = 237,285,563.26
  5. Step 5: Solve for x
    x = 237,285,563.26/20,408.38
  6. Step 6: Final answer
    x = 11,626.87

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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.