Home / 17,207.76-25,815-5,520.08

Finding the Fourth Proportional to 17,207.76, 25,815 and 5,520.08

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Solution

The fourth proportional to 17,207.76, 25,815 and 5,520.08 is: 8,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,207.76 : 25,815 = 5,520.08 : x
  2. Step 2: Convert to fraction form
    17,207.76/25,815 = 5,520.08/x
  3. Step 3: Cross multiply
    17,207.76x = 25,815 × 5,520.08
  4. Step 4: Simplify right side
    17,207.76x = 142,500,865.20
  5. Step 5: Solve for x
    x = 142,500,865.20/17,207.76
  6. Step 6: Final answer
    x = 8,281.20

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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.