Home / 35,988.78-49,661.32-20,072.88

Finding the Fourth Proportional to 35,988.78, 49,661.32 and 20,072.88

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Solution

The fourth proportional to 35,988.78, 49,661.32 and 20,072.88 is: 27,698.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,988.78 : 49,661.32 = 20,072.88 : x
  2. Step 2: Convert to fraction form
    35,988.78/49,661.32 = 20,072.88/x
  3. Step 3: Cross multiply
    35,988.78x = 49,661.32 × 20,072.88
  4. Step 4: Simplify right side
    35,988.78x = 996,845,717.00
  5. Step 5: Solve for x
    x = 996,845,717.00/35,988.78
  6. Step 6: Final answer
    x = 27,698.79

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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.