Home / 13,820.35-20,734.91-4,935.48

Finding the Fourth Proportional to 13,820.35, 20,734.91 and 4,935.48

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Solution

The fourth proportional to 13,820.35, 20,734.91 and 4,935.48 is: 7,404.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.35 : 20,734.91 = 4,935.48 : x
  2. Step 2: Convert to fraction form
    13,820.35/20,734.91 = 4,935.48/x
  3. Step 3: Cross multiply
    13,820.35x = 20,734.91 × 4,935.48
  4. Step 4: Simplify right side
    13,820.35x = 102,336,733.61
  5. Step 5: Solve for x
    x = 102,336,733.61/13,820.35
  6. Step 6: Final answer
    x = 7,404.79

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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.