Home / 28,454.85-42,661.17-13,649.67

Finding the Fourth Proportional to 28,454.85, 42,661.17 and 13,649.67

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Solution

The fourth proportional to 28,454.85, 42,661.17 and 13,649.67 is: 20,464.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.85 : 42,661.17 = 13,649.67 : x
  2. Step 2: Convert to fraction form
    28,454.85/42,661.17 = 13,649.67/x
  3. Step 3: Cross multiply
    28,454.85x = 42,661.17 × 13,649.67
  4. Step 4: Simplify right side
    28,454.85x = 582,310,892.31
  5. Step 5: Solve for x
    x = 582,310,892.31/28,454.85
  6. Step 6: Final answer
    x = 20,464.38

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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.