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Finding the Fourth Proportional to 33,165.78, 45,767.43 and 19,008.78

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Solution

The fourth proportional to 33,165.78, 45,767.43 and 19,008.78 is: 26,231.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,165.78 : 45,767.43 = 19,008.78 : x
  2. Step 2: Convert to fraction form
    33,165.78/45,767.43 = 19,008.78/x
  3. Step 3: Cross multiply
    33,165.78x = 45,767.43 × 19,008.78
  4. Step 4: Simplify right side
    33,165.78x = 869,983,008.04
  5. Step 5: Solve for x
    x = 869,983,008.04/33,165.78
  6. Step 6: Final answer
    x = 26,231.34

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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.