Home / 22,128.39-33,114.60-13,812.30

Finding the Fourth Proportional to 22,128.39, 33,114.60 and 13,812.30

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Solution

The fourth proportional to 22,128.39, 33,114.60 and 13,812.30 is: 20,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.39 : 33,114.60 = 13,812.30 : x
  2. Step 2: Convert to fraction form
    22,128.39/33,114.60 = 13,812.30/x
  3. Step 3: Cross multiply
    22,128.39x = 33,114.60 × 13,812.30
  4. Step 4: Simplify right side
    22,128.39x = 457,388,789.58
  5. Step 5: Solve for x
    x = 457,388,789.58/22,128.39
  6. Step 6: Final answer
    x = 20,669.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.