Home / 20,202.58-30,270.45-10,328.27

Finding the Fourth Proportional to 20,202.58, 30,270.45 and 10,328.27

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Solution

The fourth proportional to 20,202.58, 30,270.45 and 10,328.27 is: 15,475.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.58 : 30,270.45 = 10,328.27 : x
  2. Step 2: Convert to fraction form
    20,202.58/30,270.45 = 10,328.27/x
  3. Step 3: Cross multiply
    20,202.58x = 30,270.45 × 10,328.27
  4. Step 4: Simplify right side
    20,202.58x = 312,641,456.30
  5. Step 5: Solve for x
    x = 312,641,456.30/20,202.58
  6. Step 6: Final answer
    x = 15,475.33

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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.