Home / 41,319.62-61,979.43-13,239.91

Finding the Fourth Proportional to 41,319.62, 61,979.43 and 13,239.91

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Solution

The fourth proportional to 41,319.62, 61,979.43 and 13,239.91 is: 19,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,319.62 : 61,979.43 = 13,239.91 : x
  2. Step 2: Convert to fraction form
    41,319.62/61,979.43 = 13,239.91/x
  3. Step 3: Cross multiply
    41,319.62x = 61,979.43 × 13,239.91
  4. Step 4: Simplify right side
    41,319.62x = 820,601,779.07
  5. Step 5: Solve for x
    x = 820,601,779.07/41,319.62
  6. Step 6: Final answer
    x = 19,859.86

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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.