Home / 28,256.97-39,001.79-19,308.09

Finding the Fourth Proportional to 28,256.97, 39,001.79 and 19,308.09

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Solution

The fourth proportional to 28,256.97, 39,001.79 and 19,308.09 is: 26,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.97 : 39,001.79 = 19,308.09 : x
  2. Step 2: Convert to fraction form
    28,256.97/39,001.79 = 19,308.09/x
  3. Step 3: Cross multiply
    28,256.97x = 39,001.79 × 19,308.09
  4. Step 4: Simplify right side
    28,256.97x = 753,049,974.94
  5. Step 5: Solve for x
    x = 753,049,974.94/28,256.97
  6. Step 6: Final answer
    x = 26,650.06

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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.