Home / 19,940.20-29,921.10-8,848.60

Finding the Fourth Proportional to 19,940.20, 29,921.10 and 8,848.60

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Solution

The fourth proportional to 19,940.20, 29,921.10 and 8,848.60 is: 13,277.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.20 : 29,921.10 = 8,848.60 : x
  2. Step 2: Convert to fraction form
    19,940.20/29,921.10 = 8,848.60/x
  3. Step 3: Cross multiply
    19,940.20x = 29,921.10 × 8,848.60
  4. Step 4: Simplify right side
    19,940.20x = 264,759,845.46
  5. Step 5: Solve for x
    x = 264,759,845.46/19,940.20
  6. Step 6: Final answer
    x = 13,277.69

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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.