Home / 15,893.22-21,920.31-10,578.81

Finding the Fourth Proportional to 15,893.22, 21,920.31 and 10,578.81

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Solution

The fourth proportional to 15,893.22, 21,920.31 and 10,578.81 is: 14,590.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.22 : 21,920.31 = 10,578.81 : x
  2. Step 2: Convert to fraction form
    15,893.22/21,920.31 = 10,578.81/x
  3. Step 3: Cross multiply
    15,893.22x = 21,920.31 × 10,578.81
  4. Step 4: Simplify right side
    15,893.22x = 231,890,794.63
  5. Step 5: Solve for x
    x = 231,890,794.63/15,893.22
  6. Step 6: Final answer
    x = 14,590.55

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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.