Home / 38,480.19-57,719.67-19,749.42

Finding the Fourth Proportional to 38,480.19, 57,719.67 and 19,749.42

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Solution

The fourth proportional to 38,480.19, 57,719.67 and 19,749.42 is: 29,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.19 : 57,719.67 = 19,749.42 : x
  2. Step 2: Convert to fraction form
    38,480.19/57,719.67 = 19,749.42/x
  3. Step 3: Cross multiply
    38,480.19x = 57,719.67 × 19,749.42
  4. Step 4: Simplify right side
    38,480.19x = 1,139,930,005.09
  5. Step 5: Solve for x
    x = 1,139,930,005.09/38,480.19
  6. Step 6: Final answer
    x = 29,623.81

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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.