Home / 14,320.78-21,481.32-4,325.61

Finding the Fourth Proportional to 14,320.78, 21,481.32 and 4,325.61

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Solution

The fourth proportional to 14,320.78, 21,481.32 and 4,325.61 is: 6,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.78 : 21,481.32 = 4,325.61 : x
  2. Step 2: Convert to fraction form
    14,320.78/21,481.32 = 4,325.61/x
  3. Step 3: Cross multiply
    14,320.78x = 21,481.32 × 4,325.61
  4. Step 4: Simplify right side
    14,320.78x = 92,919,748.27
  5. Step 5: Solve for x
    x = 92,919,748.27/14,320.78
  6. Step 6: Final answer
    x = 6,488.46

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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.