Home / 19,880.11-29,819.48-5,089.15

Finding the Fourth Proportional to 19,880.11, 29,819.48 and 5,089.15

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Solution

The fourth proportional to 19,880.11, 29,819.48 and 5,089.15 is: 7,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.11 : 29,819.48 = 5,089.15 : x
  2. Step 2: Convert to fraction form
    19,880.11/29,819.48 = 5,089.15/x
  3. Step 3: Cross multiply
    19,880.11x = 29,819.48 × 5,089.15
  4. Step 4: Simplify right side
    19,880.11x = 151,755,855.74
  5. Step 5: Solve for x
    x = 151,755,855.74/19,880.11
  6. Step 6: Final answer
    x = 7,633.55

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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.