Home / 34,745.63-47,951.36-21,138.98

Finding the Fourth Proportional to 34,745.63, 47,951.36 and 21,138.98

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Solution

The fourth proportional to 34,745.63, 47,951.36 and 21,138.98 is: 29,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,745.63 : 47,951.36 = 21,138.98 : x
  2. Step 2: Convert to fraction form
    34,745.63/47,951.36 = 21,138.98/x
  3. Step 3: Cross multiply
    34,745.63x = 47,951.36 × 21,138.98
  4. Step 4: Simplify right side
    34,745.63x = 1,013,642,573.83
  5. Step 5: Solve for x
    x = 1,013,642,573.83/34,745.63
  6. Step 6: Final answer
    x = 29,173.24

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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.