Home / 19,983.76-27,578.82-11,488.60

Finding the Fourth Proportional to 19,983.76, 27,578.82 and 11,488.60

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Solution

The fourth proportional to 19,983.76, 27,578.82 and 11,488.60 is: 15,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.76 : 27,578.82 = 11,488.60 : x
  2. Step 2: Convert to fraction form
    19,983.76/27,578.82 = 11,488.60/x
  3. Step 3: Cross multiply
    19,983.76x = 27,578.82 × 11,488.60
  4. Step 4: Simplify right side
    19,983.76x = 316,842,031.45
  5. Step 5: Solve for x
    x = 316,842,031.45/19,983.76
  6. Step 6: Final answer
    x = 15,854.98

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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.