Home / 10,020.21-15,029.76-3,446.25

Finding the Fourth Proportional to 10,020.21, 15,029.76 and 3,446.25

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Solution

The fourth proportional to 10,020.21, 15,029.76 and 3,446.25 is: 5,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.21 : 15,029.76 = 3,446.25 : x
  2. Step 2: Convert to fraction form
    10,020.21/15,029.76 = 3,446.25/x
  3. Step 3: Cross multiply
    10,020.21x = 15,029.76 × 3,446.25
  4. Step 4: Simplify right side
    10,020.21x = 51,796,310.40
  5. Step 5: Solve for x
    x = 51,796,310.40/10,020.21
  6. Step 6: Final answer
    x = 5,169.18

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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.