Home / 19,957.78-27,541.97-11,005.62

Finding the Fourth Proportional to 19,957.78, 27,541.97 and 11,005.62

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Solution

The fourth proportional to 19,957.78, 27,541.97 and 11,005.62 is: 15,187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.78 : 27,541.97 = 11,005.62 : x
  2. Step 2: Convert to fraction form
    19,957.78/27,541.97 = 11,005.62/x
  3. Step 3: Cross multiply
    19,957.78x = 27,541.97 × 11,005.62
  4. Step 4: Simplify right side
    19,957.78x = 303,116,455.87
  5. Step 5: Solve for x
    x = 303,116,455.87/19,957.78
  6. Step 6: Final answer
    x = 15,187.88

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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.