Home / 19,538.57-29,310.59-6,391.98

Finding the Fourth Proportional to 19,538.57, 29,310.59 and 6,391.98

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Solution

The fourth proportional to 19,538.57, 29,310.59 and 6,391.98 is: 9,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.57 : 29,310.59 = 6,391.98 : x
  2. Step 2: Convert to fraction form
    19,538.57/29,310.59 = 6,391.98/x
  3. Step 3: Cross multiply
    19,538.57x = 29,310.59 × 6,391.98
  4. Step 4: Simplify right side
    19,538.57x = 187,352,721.05
  5. Step 5: Solve for x
    x = 187,352,721.05/19,538.57
  6. Step 6: Final answer
    x = 9,588.86

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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.