Home / 19,932.14-29,897.10-5,141.78

Finding the Fourth Proportional to 19,932.14, 29,897.10 and 5,141.78

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Solution

The fourth proportional to 19,932.14, 29,897.10 and 5,141.78 is: 7,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.14 : 29,897.10 = 5,141.78 : x
  2. Step 2: Convert to fraction form
    19,932.14/29,897.10 = 5,141.78/x
  3. Step 3: Cross multiply
    19,932.14x = 29,897.10 × 5,141.78
  4. Step 4: Simplify right side
    19,932.14x = 153,724,310.84
  5. Step 5: Solve for x
    x = 153,724,310.84/19,932.14
  6. Step 6: Final answer
    x = 7,712.38

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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.