Home / 19,319.75-28,982.10-5,468.75

Finding the Fourth Proportional to 19,319.75, 28,982.10 and 5,468.75

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Solution

The fourth proportional to 19,319.75, 28,982.10 and 5,468.75 is: 8,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.75 : 28,982.10 = 5,468.75 : x
  2. Step 2: Convert to fraction form
    19,319.75/28,982.10 = 5,468.75/x
  3. Step 3: Cross multiply
    19,319.75x = 28,982.10 × 5,468.75
  4. Step 4: Simplify right side
    19,319.75x = 158,495,859.38
  5. Step 5: Solve for x
    x = 158,495,859.38/19,319.75
  6. Step 6: Final answer
    x = 8,203.83

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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.