Home / 19,928.61-27,512.73-13,223.25

Finding the Fourth Proportional to 19,928.61, 27,512.73 and 13,223.25

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Solution

The fourth proportional to 19,928.61, 27,512.73 and 13,223.25 is: 18,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.61 : 27,512.73 = 13,223.25 : x
  2. Step 2: Convert to fraction form
    19,928.61/27,512.73 = 13,223.25/x
  3. Step 3: Cross multiply
    19,928.61x = 27,512.73 × 13,223.25
  4. Step 4: Simplify right side
    19,928.61x = 363,807,706.97
  5. Step 5: Solve for x
    x = 363,807,706.97/19,928.61
  6. Step 6: Final answer
    x = 18,255.55

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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.