Home / 14,480.55-21,721.32-4,992.81

Finding the Fourth Proportional to 14,480.55, 21,721.32 and 4,992.81

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Solution

The fourth proportional to 14,480.55, 21,721.32 and 4,992.81 is: 7,489.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.55 : 21,721.32 = 4,992.81 : x
  2. Step 2: Convert to fraction form
    14,480.55/21,721.32 = 4,992.81/x
  3. Step 3: Cross multiply
    14,480.55x = 21,721.32 × 4,992.81
  4. Step 4: Simplify right side
    14,480.55x = 108,450,423.71
  5. Step 5: Solve for x
    x = 108,450,423.71/14,480.55
  6. Step 6: Final answer
    x = 7,489.39

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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.