Home / 20,284.18-30,429.72-6,243.89

Finding the Fourth Proportional to 20,284.18, 30,429.72 and 6,243.89

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Solution

The fourth proportional to 20,284.18, 30,429.72 and 6,243.89 is: 9,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.18 : 30,429.72 = 6,243.89 : x
  2. Step 2: Convert to fraction form
    20,284.18/30,429.72 = 6,243.89/x
  3. Step 3: Cross multiply
    20,284.18x = 30,429.72 × 6,243.89
  4. Step 4: Simplify right side
    20,284.18x = 189,999,786.37
  5. Step 5: Solve for x
    x = 189,999,786.37/20,284.18
  6. Step 6: Final answer
    x = 9,366.89

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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.