Home / 19,422.78-29,134.14-7,733.28

Finding the Fourth Proportional to 19,422.78, 29,134.14 and 7,733.28

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Solution

The fourth proportional to 19,422.78, 29,134.14 and 7,733.28 is: 11,599.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.78 : 29,134.14 = 7,733.28 : x
  2. Step 2: Convert to fraction form
    19,422.78/29,134.14 = 7,733.28/x
  3. Step 3: Cross multiply
    19,422.78x = 29,134.14 × 7,733.28
  4. Step 4: Simplify right side
    19,422.78x = 225,302,462.18
  5. Step 5: Solve for x
    x = 225,302,462.18/19,422.78
  6. Step 6: Final answer
    x = 11,599.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.