Home / 19,829.72-27,342.60-12,650.04

Finding the Fourth Proportional to 19,829.72, 27,342.60 and 12,650.04

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Solution

The fourth proportional to 19,829.72, 27,342.60 and 12,650.04 is: 17,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.72 : 27,342.60 = 12,650.04 : x
  2. Step 2: Convert to fraction form
    19,829.72/27,342.60 = 12,650.04/x
  3. Step 3: Cross multiply
    19,829.72x = 27,342.60 × 12,650.04
  4. Step 4: Simplify right side
    19,829.72x = 345,884,936.27
  5. Step 5: Solve for x
    x = 345,884,936.27/19,829.72
  6. Step 6: Final answer
    x = 17,442.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.