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Finding the Fourth Proportional to 36,006.80, 49,698.29 and 21,871.49

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Solution

The fourth proportional to 36,006.80, 49,698.29 and 21,871.49 is: 30,188.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,006.80 : 49,698.29 = 21,871.49 : x
  2. Step 2: Convert to fraction form
    36,006.80/49,698.29 = 21,871.49/x
  3. Step 3: Cross multiply
    36,006.80x = 49,698.29 × 21,871.49
  4. Step 4: Simplify right side
    36,006.80x = 1,086,975,667.64
  5. Step 5: Solve for x
    x = 1,086,975,667.64/36,006.80
  6. Step 6: Final answer
    x = 30,188.06

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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.