Home / 20,013.85-30,021.39-6,866.04

Finding the Fourth Proportional to 20,013.85, 30,021.39 and 6,866.04

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Solution

The fourth proportional to 20,013.85, 30,021.39 and 6,866.04 is: 10,299.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.85 : 30,021.39 = 6,866.04 : x
  2. Step 2: Convert to fraction form
    20,013.85/30,021.39 = 6,866.04/x
  3. Step 3: Cross multiply
    20,013.85x = 30,021.39 × 6,866.04
  4. Step 4: Simplify right side
    20,013.85x = 206,127,880.16
  5. Step 5: Solve for x
    x = 206,127,880.16/20,013.85
  6. Step 6: Final answer
    x = 10,299.26

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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.