Home / 20,220.33-30,333.33-7,069.71

Finding the Fourth Proportional to 20,220.33, 30,333.33 and 7,069.71

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Solution

The fourth proportional to 20,220.33, 30,333.33 and 7,069.71 is: 10,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.33 : 30,333.33 = 7,069.71 : x
  2. Step 2: Convert to fraction form
    20,220.33/30,333.33 = 7,069.71/x
  3. Step 3: Cross multiply
    20,220.33x = 30,333.33 × 7,069.71
  4. Step 4: Simplify right side
    20,220.33x = 214,447,846.43
  5. Step 5: Solve for x
    x = 214,447,846.43/20,220.33
  6. Step 6: Final answer
    x = 10,605.56

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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.