Home / 20,841.68-28,761.18-11,410.04

Finding the Fourth Proportional to 20,841.68, 28,761.18 and 11,410.04

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Solution

The fourth proportional to 20,841.68, 28,761.18 and 11,410.04 is: 15,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.68 : 28,761.18 = 11,410.04 : x
  2. Step 2: Convert to fraction form
    20,841.68/28,761.18 = 11,410.04/x
  3. Step 3: Cross multiply
    20,841.68x = 28,761.18 × 11,410.04
  4. Step 4: Simplify right side
    20,841.68x = 328,166,214.25
  5. Step 5: Solve for x
    x = 328,166,214.25/20,841.68
  6. Step 6: Final answer
    x = 15,745.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.