Home / 19,654.38-27,121.02-11,153.82

Finding the Fourth Proportional to 19,654.38, 27,121.02 and 11,153.82

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Solution

The fourth proportional to 19,654.38, 27,121.02 and 11,153.82 is: 15,391.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.38 : 27,121.02 = 11,153.82 : x
  2. Step 2: Convert to fraction form
    19,654.38/27,121.02 = 11,153.82/x
  3. Step 3: Cross multiply
    19,654.38x = 27,121.02 × 11,153.82
  4. Step 4: Simplify right side
    19,654.38x = 302,502,975.30
  5. Step 5: Solve for x
    x = 302,502,975.30/19,654.38
  6. Step 6: Final answer
    x = 15,391.12

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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.