Home / 20,423.72-30,635.60-6,383.81

Finding the Fourth Proportional to 20,423.72, 30,635.60 and 6,383.81

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Solution

The fourth proportional to 20,423.72, 30,635.60 and 6,383.81 is: 9,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.72 : 30,635.60 = 6,383.81 : x
  2. Step 2: Convert to fraction form
    20,423.72/30,635.60 = 6,383.81/x
  3. Step 3: Cross multiply
    20,423.72x = 30,635.60 × 6,383.81
  4. Step 4: Simplify right side
    20,423.72x = 195,571,894.31
  5. Step 5: Solve for x
    x = 195,571,894.31/20,423.72
  6. Step 6: Final answer
    x = 9,575.73

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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.