Home / 43,031.72-64,499.06-21,912.44

Finding the Fourth Proportional to 43,031.72, 64,499.06 and 21,912.44

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Solution

The fourth proportional to 43,031.72, 64,499.06 and 21,912.44 is: 32,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,031.72 : 64,499.06 = 21,912.44 : x
  2. Step 2: Convert to fraction form
    43,031.72/64,499.06 = 21,912.44/x
  3. Step 3: Cross multiply
    43,031.72x = 64,499.06 × 21,912.44
  4. Step 4: Simplify right side
    43,031.72x = 1,413,331,782.31
  5. Step 5: Solve for x
    x = 1,413,331,782.31/43,031.72
  6. Step 6: Final answer
    x = 32,843.95

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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.