Home / 33,128-49,681.40-10,936.40

Finding the Fourth Proportional to 33,128, 49,681.40 and 10,936.40

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Solution

The fourth proportional to 33,128, 49,681.40 and 10,936.40 is: 16,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128 : 49,681.40 = 10,936.40 : x
  2. Step 2: Convert to fraction form
    33,128/49,681.40 = 10,936.40/x
  3. Step 3: Cross multiply
    33,128x = 49,681.40 × 10,936.40
  4. Step 4: Simplify right side
    33,128x = 543,335,662.96
  5. Step 5: Solve for x
    x = 543,335,662.96/33,128
  6. Step 6: Final answer
    x = 16,401.10

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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.