Home / 27,783.30-41,645.79-19,987.86

Finding the Fourth Proportional to 27,783.30, 41,645.79 and 19,987.86

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Solution

The fourth proportional to 27,783.30, 41,645.79 and 19,987.86 is: 29,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.30 : 41,645.79 = 19,987.86 : x
  2. Step 2: Convert to fraction form
    27,783.30/41,645.79 = 19,987.86/x
  3. Step 3: Cross multiply
    27,783.30x = 41,645.79 × 19,987.86
  4. Step 4: Simplify right side
    27,783.30x = 832,410,220.11
  5. Step 5: Solve for x
    x = 832,410,220.11/27,783.30
  6. Step 6: Final answer
    x = 29,960.81

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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.