Home / 38,103.40-57,138.49-11,802.03

Finding the Fourth Proportional to 38,103.40, 57,138.49 and 11,802.03

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Solution

The fourth proportional to 38,103.40, 57,138.49 and 11,802.03 is: 17,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,103.40 : 57,138.49 = 11,802.03 : x
  2. Step 2: Convert to fraction form
    38,103.40/57,138.49 = 11,802.03/x
  3. Step 3: Cross multiply
    38,103.40x = 57,138.49 × 11,802.03
  4. Step 4: Simplify right side
    38,103.40x = 674,350,173.13
  5. Step 5: Solve for x
    x = 674,350,173.13/38,103.40
  6. Step 6: Final answer
    x = 17,697.90

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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.