Home / 38,615.13-57,917.84-12,317.67

Finding the Fourth Proportional to 38,615.13, 57,917.84 and 12,317.67

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Solution

The fourth proportional to 38,615.13, 57,917.84 and 12,317.67 is: 18,474.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,615.13 : 57,917.84 = 12,317.67 : x
  2. Step 2: Convert to fraction form
    38,615.13/57,917.84 = 12,317.67/x
  3. Step 3: Cross multiply
    38,615.13x = 57,917.84 × 12,317.67
  4. Step 4: Simplify right side
    38,615.13x = 713,412,778.64
  5. Step 5: Solve for x
    x = 713,412,778.64/38,615.13
  6. Step 6: Final answer
    x = 18,474.95

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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.