Home / 14,228.44-21,340.25-5,220.70

Finding the Fourth Proportional to 14,228.44, 21,340.25 and 5,220.70

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Solution

The fourth proportional to 14,228.44, 21,340.25 and 5,220.70 is: 7,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.44 : 21,340.25 = 5,220.70 : x
  2. Step 2: Convert to fraction form
    14,228.44/21,340.25 = 5,220.70/x
  3. Step 3: Cross multiply
    14,228.44x = 21,340.25 × 5,220.70
  4. Step 4: Simplify right side
    14,228.44x = 111,410,910.37
  5. Step 5: Solve for x
    x = 111,410,910.37/14,228.44
  6. Step 6: Final answer
    x = 7,830.16

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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.