Home / 38,624.79-57,974.65-18,648.37

Finding the Fourth Proportional to 38,624.79, 57,974.65 and 18,648.37

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Solution

The fourth proportional to 38,624.79, 57,974.65 and 18,648.37 is: 27,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,624.79 : 57,974.65 = 18,648.37 : x
  2. Step 2: Convert to fraction form
    38,624.79/57,974.65 = 18,648.37/x
  3. Step 3: Cross multiply
    38,624.79x = 57,974.65 × 18,648.37
  4. Step 4: Simplify right side
    38,624.79x = 1,081,132,749.67
  5. Step 5: Solve for x
    x = 1,081,132,749.67/38,624.79
  6. Step 6: Final answer
    x = 27,990.64

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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.