Home / 20,031.24-27,654.36-13,326

Finding the Fourth Proportional to 20,031.24, 27,654.36 and 13,326

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Solution

The fourth proportional to 20,031.24, 27,654.36 and 13,326 is: 18,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.24 : 27,654.36 = 13,326 : x
  2. Step 2: Convert to fraction form
    20,031.24/27,654.36 = 13,326/x
  3. Step 3: Cross multiply
    20,031.24x = 27,654.36 × 13,326
  4. Step 4: Simplify right side
    20,031.24x = 368,522,001.36
  5. Step 5: Solve for x
    x = 368,522,001.36/20,031.24
  6. Step 6: Final answer
    x = 18,397.36

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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.