Home / 21,302.82-31,953.77-5,720.44

Finding the Fourth Proportional to 21,302.82, 31,953.77 and 5,720.44

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Solution

The fourth proportional to 21,302.82, 31,953.77 and 5,720.44 is: 8,580.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.82 : 31,953.77 = 5,720.44 : x
  2. Step 2: Convert to fraction form
    21,302.82/31,953.77 = 5,720.44/x
  3. Step 3: Cross multiply
    21,302.82x = 31,953.77 × 5,720.44
  4. Step 4: Simplify right side
    21,302.82x = 182,789,624.06
  5. Step 5: Solve for x
    x = 182,789,624.06/21,302.82
  6. Step 6: Final answer
    x = 8,580.54

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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.