Home / 19,064.60-28,629.30-14,139.80

Finding the Fourth Proportional to 19,064.60, 28,629.30 and 14,139.80

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Solution

The fourth proportional to 19,064.60, 28,629.30 and 14,139.80 is: 21,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.60 : 28,629.30 = 14,139.80 : x
  2. Step 2: Convert to fraction form
    19,064.60/28,629.30 = 14,139.80/x
  3. Step 3: Cross multiply
    19,064.60x = 28,629.30 × 14,139.80
  4. Step 4: Simplify right side
    19,064.60x = 404,812,576.14
  5. Step 5: Solve for x
    x = 404,812,576.14/19,064.60
  6. Step 6: Final answer
    x = 21,233.73

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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.