Home / 13,629.98-20,438.30-5,623.26

Finding the Fourth Proportional to 13,629.98, 20,438.30 and 5,623.26

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Solution

The fourth proportional to 13,629.98, 20,438.30 and 5,623.26 is: 8,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.98 : 20,438.30 = 5,623.26 : x
  2. Step 2: Convert to fraction form
    13,629.98/20,438.30 = 5,623.26/x
  3. Step 3: Cross multiply
    13,629.98x = 20,438.30 × 5,623.26
  4. Step 4: Simplify right side
    13,629.98x = 114,929,780.64
  5. Step 5: Solve for x
    x = 114,929,780.64/13,629.98
  6. Step 6: Final answer
    x = 8,432.13

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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.