Home / 14,408.42-21,579.39-13,909.73

Finding the Fourth Proportional to 14,408.42, 21,579.39 and 13,909.73

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Solution

The fourth proportional to 14,408.42, 21,579.39 and 13,909.73 is: 20,832.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.42 : 21,579.39 = 13,909.73 : x
  2. Step 2: Convert to fraction form
    14,408.42/21,579.39 = 13,909.73/x
  3. Step 3: Cross multiply
    14,408.42x = 21,579.39 × 13,909.73
  4. Step 4: Simplify right side
    14,408.42x = 300,163,488.46
  5. Step 5: Solve for x
    x = 300,163,488.46/14,408.42
  6. Step 6: Final answer
    x = 20,832.51

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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.