Home / 20,244.84-27,928.74-11,857.80

Finding the Fourth Proportional to 20,244.84, 27,928.74 and 11,857.80

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Solution

The fourth proportional to 20,244.84, 27,928.74 and 11,857.80 is: 16,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,244.84 : 27,928.74 = 11,857.80 : x
  2. Step 2: Convert to fraction form
    20,244.84/27,928.74 = 11,857.80/x
  3. Step 3: Cross multiply
    20,244.84x = 27,928.74 × 11,857.80
  4. Step 4: Simplify right side
    20,244.84x = 331,173,413.17
  5. Step 5: Solve for x
    x = 331,173,413.17/20,244.84
  6. Step 6: Final answer
    x = 16,358.41

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1.5x scale

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.