Home / 20,137.41-27,788.43-11,184.69

Finding the Fourth Proportional to 20,137.41, 27,788.43 and 11,184.69

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Solution

The fourth proportional to 20,137.41, 27,788.43 and 11,184.69 is: 15,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.41 : 27,788.43 = 11,184.69 : x
  2. Step 2: Convert to fraction form
    20,137.41/27,788.43 = 11,184.69/x
  3. Step 3: Cross multiply
    20,137.41x = 27,788.43 × 11,184.69
  4. Step 4: Simplify right side
    20,137.41x = 310,804,975.14
  5. Step 5: Solve for x
    x = 310,804,975.14/20,137.41
  6. Step 6: Final answer
    x = 15,434.21

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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.