Home / 20,270.70-27,973.42-11,196.64

Finding the Fourth Proportional to 20,270.70, 27,973.42 and 11,196.64

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Solution

The fourth proportional to 20,270.70, 27,973.42 and 11,196.64 is: 15,451.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270.70 : 27,973.42 = 11,196.64 : x
  2. Step 2: Convert to fraction form
    20,270.70/27,973.42 = 11,196.64/x
  3. Step 3: Cross multiply
    20,270.70x = 27,973.42 × 11,196.64
  4. Step 4: Simplify right side
    20,270.70x = 313,208,320.28
  5. Step 5: Solve for x
    x = 313,208,320.28/20,270.70
  6. Step 6: Final answer
    x = 15,451.28

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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.