Home / 20,895.96-28,836.19-11,464.53

Finding the Fourth Proportional to 20,895.96, 28,836.19 and 11,464.53

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Solution

The fourth proportional to 20,895.96, 28,836.19 and 11,464.53 is: 15,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.96 : 28,836.19 = 11,464.53 : x
  2. Step 2: Convert to fraction form
    20,895.96/28,836.19 = 11,464.53/x
  3. Step 3: Cross multiply
    20,895.96x = 28,836.19 × 11,464.53
  4. Step 4: Simplify right side
    20,895.96x = 330,593,365.34
  5. Step 5: Solve for x
    x = 330,593,365.34/20,895.96
  6. Step 6: Final answer
    x = 15,820.92

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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.