Home / 20,162.19-27,823.47-11,208.54

Finding the Fourth Proportional to 20,162.19, 27,823.47 and 11,208.54

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Solution

The fourth proportional to 20,162.19, 27,823.47 and 11,208.54 is: 15,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.19 : 27,823.47 = 11,208.54 : x
  2. Step 2: Convert to fraction form
    20,162.19/27,823.47 = 11,208.54/x
  3. Step 3: Cross multiply
    20,162.19x = 27,823.47 × 11,208.54
  4. Step 4: Simplify right side
    20,162.19x = 311,860,476.43
  5. Step 5: Solve for x
    x = 311,860,476.43/20,162.19
  6. Step 6: Final answer
    x = 15,467.59

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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.