Home / 20,363.16-28,099.82-11,410.58

Finding the Fourth Proportional to 20,363.16, 28,099.82 and 11,410.58

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Solution

The fourth proportional to 20,363.16, 28,099.82 and 11,410.58 is: 15,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.16 : 28,099.82 = 11,410.58 : x
  2. Step 2: Convert to fraction form
    20,363.16/28,099.82 = 11,410.58/x
  3. Step 3: Cross multiply
    20,363.16x = 28,099.82 × 11,410.58
  4. Step 4: Simplify right side
    20,363.16x = 320,635,244.10
  5. Step 5: Solve for x
    x = 320,635,244.10/20,363.16
  6. Step 6: Final answer
    x = 15,745.85

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1.5x scale

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.