Home / 19,901.94-27,455.46-11,930.34

Finding the Fourth Proportional to 19,901.94, 27,455.46 and 11,930.34

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Solution

The fourth proportional to 19,901.94, 27,455.46 and 11,930.34 is: 16,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.94 : 27,455.46 = 11,930.34 : x
  2. Step 2: Convert to fraction form
    19,901.94/27,455.46 = 11,930.34/x
  3. Step 3: Cross multiply
    19,901.94x = 27,455.46 × 11,930.34
  4. Step 4: Simplify right side
    19,901.94x = 327,552,972.66
  5. Step 5: Solve for x
    x = 327,552,972.66/19,901.94
  6. Step 6: Final answer
    x = 16,458.34

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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.