Home / 20,003.36-30,005.03-6,855.84

Finding the Fourth Proportional to 20,003.36, 30,005.03 and 6,855.84

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Solution

The fourth proportional to 20,003.36, 30,005.03 and 6,855.84 is: 10,283.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,003.36 : 30,005.03 = 6,855.84 : x
  2. Step 2: Convert to fraction form
    20,003.36/30,005.03 = 6,855.84/x
  3. Step 3: Cross multiply
    20,003.36x = 30,005.03 × 6,855.84
  4. Step 4: Simplify right side
    20,003.36x = 205,709,702.01
  5. Step 5: Solve for x
    x = 205,709,702.01/20,003.36
  6. Step 6: Final answer
    x = 10,283.76

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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.