Home / 13,403.45-20,105.33-4,043.55

Finding the Fourth Proportional to 13,403.45, 20,105.33 and 4,043.55

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Solution

The fourth proportional to 13,403.45, 20,105.33 and 4,043.55 is: 6,065.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.45 : 20,105.33 = 4,043.55 : x
  2. Step 2: Convert to fraction form
    13,403.45/20,105.33 = 4,043.55/x
  3. Step 3: Cross multiply
    13,403.45x = 20,105.33 × 4,043.55
  4. Step 4: Simplify right side
    13,403.45x = 81,296,962.30
  5. Step 5: Solve for x
    x = 81,296,962.30/13,403.45
  6. Step 6: Final answer
    x = 6,065.37

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1.5x scale

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.