Home / 30,943.89-42,702.39-16,796.43

Finding the Fourth Proportional to 30,943.89, 42,702.39 and 16,796.43

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Solution

The fourth proportional to 30,943.89, 42,702.39 and 16,796.43 is: 23,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.89 : 42,702.39 = 16,796.43 : x
  2. Step 2: Convert to fraction form
    30,943.89/42,702.39 = 16,796.43/x
  3. Step 3: Cross multiply
    30,943.89x = 42,702.39 × 16,796.43
  4. Step 4: Simplify right side
    30,943.89x = 717,247,704.47
  5. Step 5: Solve for x
    x = 717,247,704.47/30,943.89
  6. Step 6: Final answer
    x = 23,178.98

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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.