Home / 39,109.59-58,673.03-18,321.75

Finding the Fourth Proportional to 39,109.59, 58,673.03 and 18,321.75

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Solution

The fourth proportional to 39,109.59, 58,673.03 and 18,321.75 is: 27,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,109.59 : 58,673.03 = 18,321.75 : x
  2. Step 2: Convert to fraction form
    39,109.59/58,673.03 = 18,321.75/x
  3. Step 3: Cross multiply
    39,109.59x = 58,673.03 × 18,321.75
  4. Step 4: Simplify right side
    39,109.59x = 1,074,992,495.79
  5. Step 5: Solve for x
    x = 1,074,992,495.79/39,109.59
  6. Step 6: Final answer
    x = 27,486.67

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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.