Home / 21,965.48-30,312.41-11,894.04

Finding the Fourth Proportional to 21,965.48, 30,312.41 and 11,894.04

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Solution

The fourth proportional to 21,965.48, 30,312.41 and 11,894.04 is: 16,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.48 : 30,312.41 = 11,894.04 : x
  2. Step 2: Convert to fraction form
    21,965.48/30,312.41 = 11,894.04/x
  3. Step 3: Cross multiply
    21,965.48x = 30,312.41 × 11,894.04
  4. Step 4: Simplify right side
    21,965.48x = 360,536,957.57
  5. Step 5: Solve for x
    x = 360,536,957.57/21,965.48
  6. Step 6: Final answer
    x = 16,413.80

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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.