Home / 13,389.30-20,084.36-4,029.75

Finding the Fourth Proportional to 13,389.30, 20,084.36 and 4,029.75

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Solution

The fourth proportional to 13,389.30, 20,084.36 and 4,029.75 is: 6,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.30 : 20,084.36 = 4,029.75 : x
  2. Step 2: Convert to fraction form
    13,389.30/20,084.36 = 4,029.75/x
  3. Step 3: Cross multiply
    13,389.30x = 20,084.36 × 4,029.75
  4. Step 4: Simplify right side
    13,389.30x = 80,934,929.56
  5. Step 5: Solve for x
    x = 80,934,929.56/13,389.30
  6. Step 6: Final answer
    x = 6,044.75

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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.