Home / 27,420.92-41,155.37-13,391.31

Finding the Fourth Proportional to 27,420.92, 41,155.37 and 13,391.31

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Solution

The fourth proportional to 27,420.92, 41,155.37 and 13,391.31 is: 20,098.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.92 : 41,155.37 = 13,391.31 : x
  2. Step 2: Convert to fraction form
    27,420.92/41,155.37 = 13,391.31/x
  3. Step 3: Cross multiply
    27,420.92x = 41,155.37 × 13,391.31
  4. Step 4: Simplify right side
    27,420.92x = 551,124,317.83
  5. Step 5: Solve for x
    x = 551,124,317.83/27,420.92
  6. Step 6: Final answer
    x = 20,098.68

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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.