Home / 19,883.82-27,438.61-10,929.60

Finding the Fourth Proportional to 19,883.82, 27,438.61 and 10,929.60

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Solution

The fourth proportional to 19,883.82, 27,438.61 and 10,929.60 is: 15,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.82 : 27,438.61 = 10,929.60 : x
  2. Step 2: Convert to fraction form
    19,883.82/27,438.61 = 10,929.60/x
  3. Step 3: Cross multiply
    19,883.82x = 27,438.61 × 10,929.60
  4. Step 4: Simplify right side
    19,883.82x = 299,892,894.66
  5. Step 5: Solve for x
    x = 299,892,894.66/19,883.82
  6. Step 6: Final answer
    x = 15,082.26

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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.