Home / 19,772.78-29,659.16-8,083.26

Finding the Fourth Proportional to 19,772.78, 29,659.16 and 8,083.26

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Solution

The fourth proportional to 19,772.78, 29,659.16 and 8,083.26 is: 12,124.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.78 : 29,659.16 = 8,083.26 : x
  2. Step 2: Convert to fraction form
    19,772.78/29,659.16 = 8,083.26/x
  3. Step 3: Cross multiply
    19,772.78x = 29,659.16 × 8,083.26
  4. Step 4: Simplify right side
    19,772.78x = 239,742,721.87
  5. Step 5: Solve for x
    x = 239,742,721.87/19,772.78
  6. Step 6: Final answer
    x = 12,124.89

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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.