Home / 36,065.76-49,786.56-21,732

Finding the Fourth Proportional to 36,065.76, 49,786.56 and 21,732

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Solution

The fourth proportional to 36,065.76, 49,786.56 and 21,732 is: 29,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,065.76 : 49,786.56 = 21,732 : x
  2. Step 2: Convert to fraction form
    36,065.76/49,786.56 = 21,732/x
  3. Step 3: Cross multiply
    36,065.76x = 49,786.56 × 21,732
  4. Step 4: Simplify right side
    36,065.76x = 1,081,961,521.92
  5. Step 5: Solve for x
    x = 1,081,961,521.92/36,065.76
  6. Step 6: Final answer
    x = 29,999.69

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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.