Home / 19,578.26-29,370.19-7,890.58

Finding the Fourth Proportional to 19,578.26, 29,370.19 and 7,890.58

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Solution

The fourth proportional to 19,578.26, 29,370.19 and 7,890.58 is: 11,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.26 : 29,370.19 = 7,890.58 : x
  2. Step 2: Convert to fraction form
    19,578.26/29,370.19 = 7,890.58/x
  3. Step 3: Cross multiply
    19,578.26x = 29,370.19 × 7,890.58
  4. Step 4: Simplify right side
    19,578.26x = 231,747,833.81
  5. Step 5: Solve for x
    x = 231,747,833.81/19,578.26
  6. Step 6: Final answer
    x = 11,837.00

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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.