Home / 20,895.68-28,836.60-11,464.58

Finding the Fourth Proportional to 20,895.68, 28,836.60 and 11,464.58

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Solution

The fourth proportional to 20,895.68, 28,836.60 and 11,464.58 is: 15,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.68 : 28,836.60 = 11,464.58 : x
  2. Step 2: Convert to fraction form
    20,895.68/28,836.60 = 11,464.58/x
  3. Step 3: Cross multiply
    20,895.68x = 28,836.60 × 11,464.58
  4. Step 4: Simplify right side
    20,895.68x = 330,599,507.63
  5. Step 5: Solve for x
    x = 330,599,507.63/20,895.68
  6. Step 6: Final answer
    x = 15,821.43

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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.