Home / 33,125.19-45,712.72-18,978.09

Finding the Fourth Proportional to 33,125.19, 45,712.72 and 18,978.09

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Solution

The fourth proportional to 33,125.19, 45,712.72 and 18,978.09 is: 26,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,125.19 : 45,712.72 = 18,978.09 : x
  2. Step 2: Convert to fraction form
    33,125.19/45,712.72 = 18,978.09/x
  3. Step 3: Cross multiply
    33,125.19x = 45,712.72 × 18,978.09
  4. Step 4: Simplify right side
    33,125.19x = 867,540,114.30
  5. Step 5: Solve for x
    x = 867,540,114.30/33,125.19
  6. Step 6: Final answer
    x = 26,189.74

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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.