Home / 56,286.44-84,429.64-21,217.89

Finding the Fourth Proportional to 56,286.44, 84,429.64 and 21,217.89

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Solution

The fourth proportional to 56,286.44, 84,429.64 and 21,217.89 is: 31,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.44 : 84,429.64 = 21,217.89 : x
  2. Step 2: Convert to fraction form
    56,286.44/84,429.64 = 21,217.89/x
  3. Step 3: Cross multiply
    56,286.44x = 84,429.64 × 21,217.89
  4. Step 4: Simplify right side
    56,286.44x = 1,791,418,708.17
  5. Step 5: Solve for x
    x = 1,791,418,708.17/56,286.44
  6. Step 6: Final answer
    x = 31,826.83

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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.