Home / 20,896.10-28,836.69-11,464.82

Finding the Fourth Proportional to 20,896.10, 28,836.69 and 11,464.82

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Solution

The fourth proportional to 20,896.10, 28,836.69 and 11,464.82 is: 15,821.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.10 : 28,836.69 = 11,464.82 : x
  2. Step 2: Convert to fraction form
    20,896.10/28,836.69 = 11,464.82/x
  3. Step 3: Cross multiply
    20,896.10x = 28,836.69 × 11,464.82
  4. Step 4: Simplify right side
    20,896.10x = 330,607,460.25
  5. Step 5: Solve for x
    x = 330,607,460.25/20,896.10
  6. Step 6: Final answer
    x = 15,821.49

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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.