Home / 20,180.12-27,848.42-11,106.02

Finding the Fourth Proportional to 20,180.12, 27,848.42 and 11,106.02

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Solution

The fourth proportional to 20,180.12, 27,848.42 and 11,106.02 is: 15,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.12 : 27,848.42 = 11,106.02 : x
  2. Step 2: Convert to fraction form
    20,180.12/27,848.42 = 11,106.02/x
  3. Step 3: Cross multiply
    20,180.12x = 27,848.42 × 11,106.02
  4. Step 4: Simplify right side
    20,180.12x = 309,285,109.49
  5. Step 5: Solve for x
    x = 309,285,109.49/20,180.12
  6. Step 6: Final answer
    x = 15,326.23

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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.