Home / 33,153-49,739.88-21,320.13

Finding the Fourth Proportional to 33,153, 49,739.88 and 21,320.13

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Solution

The fourth proportional to 33,153, 49,739.88 and 21,320.13 is: 31,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,153 : 49,739.88 = 21,320.13 : x
  2. Step 2: Convert to fraction form
    33,153/49,739.88 = 21,320.13/x
  3. Step 3: Cross multiply
    33,153x = 49,739.88 × 21,320.13
  4. Step 4: Simplify right side
    33,153x = 1,060,460,814.36
  5. Step 5: Solve for x
    x = 1,060,460,814.36/33,153
  6. Step 6: Final answer
    x = 31,986.87

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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.