Home / 14,481.48-21,721.76-4,621.36

Finding the Fourth Proportional to 14,481.48, 21,721.76 and 4,621.36

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Solution

The fourth proportional to 14,481.48, 21,721.76 and 4,621.36 is: 6,931.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.48 : 21,721.76 = 4,621.36 : x
  2. Step 2: Convert to fraction form
    14,481.48/21,721.76 = 4,621.36/x
  3. Step 3: Cross multiply
    14,481.48x = 21,721.76 × 4,621.36
  4. Step 4: Simplify right side
    14,481.48x = 100,384,072.79
  5. Step 5: Solve for x
    x = 100,384,072.79/14,481.48
  6. Step 6: Final answer
    x = 6,931.89

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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.