Home / 20,164.14-27,822.20-13,706.02

Finding the Fourth Proportional to 20,164.14, 27,822.20 and 13,706.02

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Solution

The fourth proportional to 20,164.14, 27,822.20 and 13,706.02 is: 18,911.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,164.14 : 27,822.20 = 13,706.02 : x
  2. Step 2: Convert to fraction form
    20,164.14/27,822.20 = 13,706.02/x
  3. Step 3: Cross multiply
    20,164.14x = 27,822.20 × 13,706.02
  4. Step 4: Simplify right side
    20,164.14x = 381,331,629.64
  5. Step 5: Solve for x
    x = 381,331,629.64/20,164.14
  6. Step 6: Final answer
    x = 18,911.38

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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.