Home / 36,036.82-49,721.61-21,889.90

Finding the Fourth Proportional to 36,036.82, 49,721.61 and 21,889.90

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Solution

The fourth proportional to 36,036.82, 49,721.61 and 21,889.90 is: 30,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,036.82 : 49,721.61 = 21,889.90 : x
  2. Step 2: Convert to fraction form
    36,036.82/49,721.61 = 21,889.90/x
  3. Step 3: Cross multiply
    36,036.82x = 49,721.61 × 21,889.90
  4. Step 4: Simplify right side
    36,036.82x = 1,088,401,070.74
  5. Step 5: Solve for x
    x = 1,088,401,070.74/36,036.82
  6. Step 6: Final answer
    x = 30,202.47

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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.