Home / 28,712.30-43,050.81-11,161.67

Finding the Fourth Proportional to 28,712.30, 43,050.81 and 11,161.67

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Solution

The fourth proportional to 28,712.30, 43,050.81 and 11,161.67 is: 16,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.30 : 43,050.81 = 11,161.67 : x
  2. Step 2: Convert to fraction form
    28,712.30/43,050.81 = 11,161.67/x
  3. Step 3: Cross multiply
    28,712.30x = 43,050.81 × 11,161.67
  4. Step 4: Simplify right side
    28,712.30x = 480,518,934.45
  5. Step 5: Solve for x
    x = 480,518,934.45/28,712.30
  6. Step 6: Final answer
    x = 16,735.65

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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.