Home / 13,220.60-19,830.62-3,225.39

Finding the Fourth Proportional to 13,220.60, 19,830.62 and 3,225.39

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Solution

The fourth proportional to 13,220.60, 19,830.62 and 3,225.39 is: 4,838.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.60 : 19,830.62 = 3,225.39 : x
  2. Step 2: Convert to fraction form
    13,220.60/19,830.62 = 3,225.39/x
  3. Step 3: Cross multiply
    13,220.60x = 19,830.62 × 3,225.39
  4. Step 4: Simplify right side
    13,220.60x = 63,961,467.31
  5. Step 5: Solve for x
    x = 63,961,467.31/13,220.60
  6. Step 6: Final answer
    x = 4,838.02

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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.