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Finding the Fourth Proportional to 33,129, 45,718.02 and 18,225

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Solution

The fourth proportional to 33,129, 45,718.02 and 18,225 is: 25,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129 : 45,718.02 = 18,225 : x
  2. Step 2: Convert to fraction form
    33,129/45,718.02 = 18,225/x
  3. Step 3: Cross multiply
    33,129x = 45,718.02 × 18,225
  4. Step 4: Simplify right side
    33,129x = 833,210,914.50
  5. Step 5: Solve for x
    x = 833,210,914.50/33,129
  6. Step 6: Final answer
    x = 25,150.50

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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.