Home / 30,551.92-45,843.36-13,909.66

Finding the Fourth Proportional to 30,551.92, 45,843.36 and 13,909.66

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Solution

The fourth proportional to 30,551.92, 45,843.36 and 13,909.66 is: 20,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.92 : 45,843.36 = 13,909.66 : x
  2. Step 2: Convert to fraction form
    30,551.92/45,843.36 = 13,909.66/x
  3. Step 3: Cross multiply
    30,551.92x = 45,843.36 × 13,909.66
  4. Step 4: Simplify right side
    30,551.92x = 637,665,550.86
  5. Step 5: Solve for x
    x = 637,665,550.86/30,551.92
  6. Step 6: Final answer
    x = 20,871.54

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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.