Home / 13,889.72-20,839.46-4,029.59

Finding the Fourth Proportional to 13,889.72, 20,839.46 and 4,029.59

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Solution

The fourth proportional to 13,889.72, 20,839.46 and 4,029.59 is: 6,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.72 : 20,839.46 = 4,029.59 : x
  2. Step 2: Convert to fraction form
    13,889.72/20,839.46 = 4,029.59/x
  3. Step 3: Cross multiply
    13,889.72x = 20,839.46 × 4,029.59
  4. Step 4: Simplify right side
    13,889.72x = 83,974,511.57
  5. Step 5: Solve for x
    x = 83,974,511.57/13,889.72
  6. Step 6: Final answer
    x = 6,045.80

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1.5x scale

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.