Home / 33,171.90-45,786.63-21,849.66

Finding the Fourth Proportional to 33,171.90, 45,786.63 and 21,849.66

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Solution

The fourth proportional to 33,171.90, 45,786.63 and 21,849.66 is: 30,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,171.90 : 45,786.63 = 21,849.66 : x
  2. Step 2: Convert to fraction form
    33,171.90/45,786.63 = 21,849.66/x
  3. Step 3: Cross multiply
    33,171.90x = 45,786.63 × 21,849.66
  4. Step 4: Simplify right side
    33,171.90x = 1,000,422,298.05
  5. Step 5: Solve for x
    x = 1,000,422,298.05/33,171.90
  6. Step 6: Final answer
    x = 30,158.73

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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.