Home / 19,904.60-27,469.50-11,409.35

Finding the Fourth Proportional to 19,904.60, 27,469.50 and 11,409.35

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Solution

The fourth proportional to 19,904.60, 27,469.50 and 11,409.35 is: 15,745.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.60 : 27,469.50 = 11,409.35 : x
  2. Step 2: Convert to fraction form
    19,904.60/27,469.50 = 11,409.35/x
  3. Step 3: Cross multiply
    19,904.60x = 27,469.50 × 11,409.35
  4. Step 4: Simplify right side
    19,904.60x = 313,409,139.83
  5. Step 5: Solve for x
    x = 313,409,139.83/19,904.60
  6. Step 6: Final answer
    x = 15,745.56

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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.