Home / 20,792.84-28,660.37-16,247.57

Finding the Fourth Proportional to 20,792.84, 28,660.37 and 16,247.57

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Solution

The fourth proportional to 20,792.84, 28,660.37 and 16,247.57 is: 22,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.84 : 28,660.37 = 16,247.57 : x
  2. Step 2: Convert to fraction form
    20,792.84/28,660.37 = 16,247.57/x
  3. Step 3: Cross multiply
    20,792.84x = 28,660.37 × 16,247.57
  4. Step 4: Simplify right side
    20,792.84x = 465,661,143.26
  5. Step 5: Solve for x
    x = 465,661,143.26/20,792.84
  6. Step 6: Final answer
    x = 22,395.27

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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.