Home / 19,984.24-27,578.20-11,031.76

Finding the Fourth Proportional to 19,984.24, 27,578.20 and 11,031.76

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Solution

The fourth proportional to 19,984.24, 27,578.20 and 11,031.76 is: 15,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.24 : 27,578.20 = 11,031.76 : x
  2. Step 2: Convert to fraction form
    19,984.24/27,578.20 = 11,031.76/x
  3. Step 3: Cross multiply
    19,984.24x = 27,578.20 × 11,031.76
  4. Step 4: Simplify right side
    19,984.24x = 304,236,083.63
  5. Step 5: Solve for x
    x = 304,236,083.63/19,984.24
  6. Step 6: Final answer
    x = 15,223.80

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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.