Home / 20,221.74-30,313.44-7,065.56

Finding the Fourth Proportional to 20,221.74, 30,313.44 and 7,065.56

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Solution

The fourth proportional to 20,221.74, 30,313.44 and 7,065.56 is: 10,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.74 : 30,313.44 = 7,065.56 : x
  2. Step 2: Convert to fraction form
    20,221.74/30,313.44 = 7,065.56/x
  3. Step 3: Cross multiply
    20,221.74x = 30,313.44 × 7,065.56
  4. Step 4: Simplify right side
    20,221.74x = 214,181,429.13
  5. Step 5: Solve for x
    x = 214,181,429.13/20,221.74
  6. Step 6: Final answer
    x = 10,591.64

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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.