Home / 27,429.26-37,855.17-19,778.83

Finding the Fourth Proportional to 27,429.26, 37,855.17 and 19,778.83

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Solution

The fourth proportional to 27,429.26, 37,855.17 and 19,778.83 is: 27,296.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,429.26 : 37,855.17 = 19,778.83 : x
  2. Step 2: Convert to fraction form
    27,429.26/37,855.17 = 19,778.83/x
  3. Step 3: Cross multiply
    27,429.26x = 37,855.17 × 19,778.83
  4. Step 4: Simplify right side
    27,429.26x = 748,731,145.98
  5. Step 5: Solve for x
    x = 748,731,145.98/27,429.26
  6. Step 6: Final answer
    x = 27,296.81

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1.5x scale

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.