Home / 33,137.84-45,731.82-18,990.72

Finding the Fourth Proportional to 33,137.84, 45,731.82 and 18,990.72

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Solution

The fourth proportional to 33,137.84, 45,731.82 and 18,990.72 is: 26,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,137.84 : 45,731.82 = 18,990.72 : x
  2. Step 2: Convert to fraction form
    33,137.84/45,731.82 = 18,990.72/x
  3. Step 3: Cross multiply
    33,137.84x = 45,731.82 × 18,990.72
  4. Step 4: Simplify right side
    33,137.84x = 868,480,259.93
  5. Step 5: Solve for x
    x = 868,480,259.93/33,137.84
  6. Step 6: Final answer
    x = 26,208.11

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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.