Home / 20,171.94-27,835.78-11,219.82

Finding the Fourth Proportional to 20,171.94, 27,835.78 and 11,219.82

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Solution

The fourth proportional to 20,171.94, 27,835.78 and 11,219.82 is: 15,482.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.94 : 27,835.78 = 11,219.82 : x
  2. Step 2: Convert to fraction form
    20,171.94/27,835.78 = 11,219.82/x
  3. Step 3: Cross multiply
    20,171.94x = 27,835.78 × 11,219.82
  4. Step 4: Simplify right side
    20,171.94x = 312,312,441.16
  5. Step 5: Solve for x
    x = 312,312,441.16/20,171.94
  6. Step 6: Final answer
    x = 15,482.52

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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.