Home / 20,325.15-30,489.78-5,535.24

Finding the Fourth Proportional to 20,325.15, 30,489.78 and 5,535.24

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Solution

The fourth proportional to 20,325.15, 30,489.78 and 5,535.24 is: 8,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,325.15 : 30,489.78 = 5,535.24 : x
  2. Step 2: Convert to fraction form
    20,325.15/30,489.78 = 5,535.24/x
  3. Step 3: Cross multiply
    20,325.15x = 30,489.78 × 5,535.24
  4. Step 4: Simplify right side
    20,325.15x = 168,768,249.85
  5. Step 5: Solve for x
    x = 168,768,249.85/20,325.15
  6. Step 6: Final answer
    x = 8,303.42

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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.