Home / 28,674.20-43,014.03-11,145.39

Finding the Fourth Proportional to 28,674.20, 43,014.03 and 11,145.39

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Solution

The fourth proportional to 28,674.20, 43,014.03 and 11,145.39 is: 16,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674.20 : 43,014.03 = 11,145.39 : x
  2. Step 2: Convert to fraction form
    28,674.20/43,014.03 = 11,145.39/x
  3. Step 3: Cross multiply
    28,674.20x = 43,014.03 × 11,145.39
  4. Step 4: Simplify right side
    28,674.20x = 479,408,139.82
  5. Step 5: Solve for x
    x = 479,408,139.82/28,674.20
  6. Step 6: Final answer
    x = 16,719.15

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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.