Home / 20,383.20-30,571.52-5,588.69

Finding the Fourth Proportional to 20,383.20, 30,571.52 and 5,588.69

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Solution

The fourth proportional to 20,383.20, 30,571.52 and 5,588.69 is: 8,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.20 : 30,571.52 = 5,588.69 : x
  2. Step 2: Convert to fraction form
    20,383.20/30,571.52 = 5,588.69/x
  3. Step 3: Cross multiply
    20,383.20x = 30,571.52 × 5,588.69
  4. Step 4: Simplify right side
    20,383.20x = 170,854,609.22
  5. Step 5: Solve for x
    x = 170,854,609.22/20,383.20
  6. Step 6: Final answer
    x = 8,382.13

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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.