Home / 19,983.76-27,577.78-11,031.07

Finding the Fourth Proportional to 19,983.76, 27,577.78 and 11,031.07

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Solution

The fourth proportional to 19,983.76, 27,577.78 and 11,031.07 is: 15,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.76 : 27,577.78 = 11,031.07 : x
  2. Step 2: Convert to fraction form
    19,983.76/27,577.78 = 11,031.07/x
  3. Step 3: Cross multiply
    19,983.76x = 27,577.78 × 11,031.07
  4. Step 4: Simplify right side
    19,983.76x = 304,212,338.03
  5. Step 5: Solve for x
    x = 304,212,338.03/19,983.76
  6. Step 6: Final answer
    x = 15,222.98

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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.