Home / 38,111.70-57,167.55-11,819.10

Finding the Fourth Proportional to 38,111.70, 57,167.55 and 11,819.10

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Solution

The fourth proportional to 38,111.70, 57,167.55 and 11,819.10 is: 17,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.70 : 57,167.55 = 11,819.10 : x
  2. Step 2: Convert to fraction form
    38,111.70/57,167.55 = 11,819.10/x
  3. Step 3: Cross multiply
    38,111.70x = 57,167.55 × 11,819.10
  4. Step 4: Simplify right side
    38,111.70x = 675,668,990.21
  5. Step 5: Solve for x
    x = 675,668,990.21/38,111.70
  6. Step 6: Final answer
    x = 17,728.65

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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.