Home / 20,205.36-30,308.04-7,057.85

Finding the Fourth Proportional to 20,205.36, 30,308.04 and 7,057.85

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Solution

The fourth proportional to 20,205.36, 30,308.04 and 7,057.85 is: 10,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.36 : 30,308.04 = 7,057.85 : x
  2. Step 2: Convert to fraction form
    20,205.36/30,308.04 = 7,057.85/x
  3. Step 3: Cross multiply
    20,205.36x = 30,308.04 × 7,057.85
  4. Step 4: Simplify right side
    20,205.36x = 213,909,448.57
  5. Step 5: Solve for x
    x = 213,909,448.57/20,205.36
  6. Step 6: Final answer
    x = 10,586.77

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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.