Home / 38,079.58-57,128.49-11,784.34

Finding the Fourth Proportional to 38,079.58, 57,128.49 and 11,784.34

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Solution

The fourth proportional to 38,079.58, 57,128.49 and 11,784.34 is: 17,679.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.58 : 57,128.49 = 11,784.34 : x
  2. Step 2: Convert to fraction form
    38,079.58/57,128.49 = 11,784.34/x
  3. Step 3: Cross multiply
    38,079.58x = 57,128.49 × 11,784.34
  4. Step 4: Simplify right side
    38,079.58x = 673,221,549.85
  5. Step 5: Solve for x
    x = 673,221,549.85/38,079.58
  6. Step 6: Final answer
    x = 17,679.33

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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.