Home / 20,148.36-27,804.78-11,196.42

Finding the Fourth Proportional to 20,148.36, 27,804.78 and 11,196.42

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Solution

The fourth proportional to 20,148.36, 27,804.78 and 11,196.42 is: 15,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.36 : 27,804.78 = 11,196.42 : x
  2. Step 2: Convert to fraction form
    20,148.36/27,804.78 = 11,196.42/x
  3. Step 3: Cross multiply
    20,148.36x = 27,804.78 × 11,196.42
  4. Step 4: Simplify right side
    20,148.36x = 311,313,994.89
  5. Step 5: Solve for x
    x = 311,313,994.89/20,148.36
  6. Step 6: Final answer
    x = 15,451.08

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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.