Home / 28,708.30-43,044.81-11,157.67

Finding the Fourth Proportional to 28,708.30, 43,044.81 and 11,157.67

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Solution

The fourth proportional to 28,708.30, 43,044.81 and 11,157.67 is: 16,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.30 : 43,044.81 = 11,157.67 : x
  2. Step 2: Convert to fraction form
    28,708.30/43,044.81 = 11,157.67/x
  3. Step 3: Cross multiply
    28,708.30x = 43,044.81 × 11,157.67
  4. Step 4: Simplify right side
    28,708.30x = 480,279,785.19
  5. Step 5: Solve for x
    x = 480,279,785.19/28,708.30
  6. Step 6: Final answer
    x = 16,729.65

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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.