Home / 20,358.14-30,529.31-7,028.71

Finding the Fourth Proportional to 20,358.14, 30,529.31 and 7,028.71

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Solution

The fourth proportional to 20,358.14, 30,529.31 and 7,028.71 is: 10,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.14 : 30,529.31 = 7,028.71 : x
  2. Step 2: Convert to fraction form
    20,358.14/30,529.31 = 7,028.71/x
  3. Step 3: Cross multiply
    20,358.14x = 30,529.31 × 7,028.71
  4. Step 4: Simplify right side
    20,358.14x = 214,581,555.02
  5. Step 5: Solve for x
    x = 214,581,555.02/20,358.14
  6. Step 6: Final answer
    x = 10,540.33

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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.