Home / 33,179.40-45,796.98-21,857.16

Finding the Fourth Proportional to 33,179.40, 45,796.98 and 21,857.16

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Solution

The fourth proportional to 33,179.40, 45,796.98 and 21,857.16 is: 30,169.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,179.40 : 45,796.98 = 21,857.16 : x
  2. Step 2: Convert to fraction form
    33,179.40/45,796.98 = 21,857.16/x
  3. Step 3: Cross multiply
    33,179.40x = 45,796.98 × 21,857.16
  4. Step 4: Simplify right side
    33,179.40x = 1,000,991,919.38
  5. Step 5: Solve for x
    x = 1,000,991,919.38/33,179.40
  6. Step 6: Final answer
    x = 30,169.08

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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.