Home / 19,647.20-29,470.82-4,855.88

Finding the Fourth Proportional to 19,647.20, 29,470.82 and 4,855.88

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Solution

The fourth proportional to 19,647.20, 29,470.82 and 4,855.88 is: 7,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.20 : 29,470.82 = 4,855.88 : x
  2. Step 2: Convert to fraction form
    19,647.20/29,470.82 = 4,855.88/x
  3. Step 3: Cross multiply
    19,647.20x = 29,470.82 × 4,855.88
  4. Step 4: Simplify right side
    19,647.20x = 143,106,593.79
  5. Step 5: Solve for x
    x = 143,106,593.79/19,647.20
  6. Step 6: Final answer
    x = 7,283.82

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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.