Home / 20,240.40-30,360.60-5,448.94

Finding the Fourth Proportional to 20,240.40, 30,360.60 and 5,448.94

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Solution

The fourth proportional to 20,240.40, 30,360.60 and 5,448.94 is: 8,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.40 : 30,360.60 = 5,448.94 : x
  2. Step 2: Convert to fraction form
    20,240.40/30,360.60 = 5,448.94/x
  3. Step 3: Cross multiply
    20,240.40x = 30,360.60 × 5,448.94
  4. Step 4: Simplify right side
    20,240.40x = 165,433,087.76
  5. Step 5: Solve for x
    x = 165,433,087.76/20,240.40
  6. Step 6: Final answer
    x = 8,173.41

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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.