Home / 13,521.76-20,255.10-11,031.82

Finding the Fourth Proportional to 13,521.76, 20,255.10 and 11,031.82

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Solution

The fourth proportional to 13,521.76, 20,255.10 and 11,031.82 is: 16,525.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.76 : 20,255.10 = 11,031.82 : x
  2. Step 2: Convert to fraction form
    13,521.76/20,255.10 = 11,031.82/x
  3. Step 3: Cross multiply
    13,521.76x = 20,255.10 × 11,031.82
  4. Step 4: Simplify right side
    13,521.76x = 223,450,628.78
  5. Step 5: Solve for x
    x = 223,450,628.78/13,521.76
  6. Step 6: Final answer
    x = 16,525.26

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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.