Home / 33,231.78-45,848.34-21,301.68

Finding the Fourth Proportional to 33,231.78, 45,848.34 and 21,301.68

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Solution

The fourth proportional to 33,231.78, 45,848.34 and 21,301.68 is: 29,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,231.78 : 45,848.34 = 21,301.68 : x
  2. Step 2: Convert to fraction form
    33,231.78/45,848.34 = 21,301.68/x
  3. Step 3: Cross multiply
    33,231.78x = 45,848.34 × 21,301.68
  4. Step 4: Simplify right side
    33,231.78x = 976,646,667.21
  5. Step 5: Solve for x
    x = 976,646,667.21/33,231.78
  6. Step 6: Final answer
    x = 29,388.94

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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.