Home / 36,678.19-55,005.40-11,712.39

Finding the Fourth Proportional to 36,678.19, 55,005.40 and 11,712.39

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Solution

The fourth proportional to 36,678.19, 55,005.40 and 11,712.39 is: 17,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,678.19 : 55,005.40 = 11,712.39 : x
  2. Step 2: Convert to fraction form
    36,678.19/55,005.40 = 11,712.39/x
  3. Step 3: Cross multiply
    36,678.19x = 55,005.40 × 11,712.39
  4. Step 4: Simplify right side
    36,678.19x = 644,244,696.91
  5. Step 5: Solve for x
    x = 644,244,696.91/36,678.19
  6. Step 6: Final answer
    x = 17,564.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.