Home / 20,202.21-27,836.73-18,800.64

Finding the Fourth Proportional to 20,202.21, 27,836.73 and 18,800.64

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Solution

The fourth proportional to 20,202.21, 27,836.73 and 18,800.64 is: 25,905.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.21 : 27,836.73 = 18,800.64 : x
  2. Step 2: Convert to fraction form
    20,202.21/27,836.73 = 18,800.64/x
  3. Step 3: Cross multiply
    20,202.21x = 27,836.73 × 18,800.64
  4. Step 4: Simplify right side
    20,202.21x = 523,348,339.51
  5. Step 5: Solve for x
    x = 523,348,339.51/20,202.21
  6. Step 6: Final answer
    x = 25,905.50

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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.