Home / 20,225.09-30,318.03-7,735.49

Finding the Fourth Proportional to 20,225.09, 30,318.03 and 7,735.49

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Solution

The fourth proportional to 20,225.09, 30,318.03 and 7,735.49 is: 11,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.09 : 30,318.03 = 7,735.49 : x
  2. Step 2: Convert to fraction form
    20,225.09/30,318.03 = 7,735.49/x
  3. Step 3: Cross multiply
    20,225.09x = 30,318.03 × 7,735.49
  4. Step 4: Simplify right side
    20,225.09x = 234,524,893.68
  5. Step 5: Solve for x
    x = 234,524,893.68/20,225.09
  6. Step 6: Final answer
    x = 11,595.74

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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.