Home / 33,131.76-49,632.04-21,453.20

Finding the Fourth Proportional to 33,131.76, 49,632.04 and 21,453.20

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Solution

The fourth proportional to 33,131.76, 49,632.04 and 21,453.20 is: 32,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,131.76 : 49,632.04 = 21,453.20 : x
  2. Step 2: Convert to fraction form
    33,131.76/49,632.04 = 21,453.20/x
  3. Step 3: Cross multiply
    33,131.76x = 49,632.04 × 21,453.20
  4. Step 4: Simplify right side
    33,131.76x = 1,064,766,080.53
  5. Step 5: Solve for x
    x = 1,064,766,080.53/33,131.76
  6. Step 6: Final answer
    x = 32,137.32

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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.