Home / 23,139.78-34,729.14-18,551.94

Finding the Fourth Proportional to 23,139.78, 34,729.14 and 18,551.94

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Solution

The fourth proportional to 23,139.78, 34,729.14 and 18,551.94 is: 27,843.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.78 : 34,729.14 = 18,551.94 : x
  2. Step 2: Convert to fraction form
    23,139.78/34,729.14 = 18,551.94/x
  3. Step 3: Cross multiply
    23,139.78x = 34,729.14 × 18,551.94
  4. Step 4: Simplify right side
    23,139.78x = 644,292,921.53
  5. Step 5: Solve for x
    x = 644,292,921.53/23,139.78
  6. Step 6: Final answer
    x = 27,843.52

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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.