Home / 19,984.07-27,578.21-11,031.38

Finding the Fourth Proportional to 19,984.07, 27,578.21 and 11,031.38

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Solution

The fourth proportional to 19,984.07, 27,578.21 and 11,031.38 is: 15,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.07 : 27,578.21 = 11,031.38 : x
  2. Step 2: Convert to fraction form
    19,984.07/27,578.21 = 11,031.38/x
  3. Step 3: Cross multiply
    19,984.07x = 27,578.21 × 11,031.38
  4. Step 4: Simplify right side
    19,984.07x = 304,225,714.23
  5. Step 5: Solve for x
    x = 304,225,714.23/19,984.07
  6. Step 6: Final answer
    x = 15,223.41

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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.