Home / 36,218.88-49,982.23-21,122.01

Finding the Fourth Proportional to 36,218.88, 49,982.23 and 21,122.01

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Solution

The fourth proportional to 36,218.88, 49,982.23 and 21,122.01 is: 29,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.88 : 49,982.23 = 21,122.01 : x
  2. Step 2: Convert to fraction form
    36,218.88/49,982.23 = 21,122.01/x
  3. Step 3: Cross multiply
    36,218.88x = 49,982.23 × 21,122.01
  4. Step 4: Simplify right side
    36,218.88x = 1,055,724,911.97
  5. Step 5: Solve for x
    x = 1,055,724,911.97/36,218.88
  6. Step 6: Final answer
    x = 29,148.47

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1.5x scale

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.