Home / 20,441.58-28,202.31-11,487.66

Finding the Fourth Proportional to 20,441.58, 28,202.31 and 11,487.66

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Solution

The fourth proportional to 20,441.58, 28,202.31 and 11,487.66 is: 15,849.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.58 : 28,202.31 = 11,487.66 : x
  2. Step 2: Convert to fraction form
    20,441.58/28,202.31 = 11,487.66/x
  3. Step 3: Cross multiply
    20,441.58x = 28,202.31 × 11,487.66
  4. Step 4: Simplify right side
    20,441.58x = 323,978,548.49
  5. Step 5: Solve for x
    x = 323,978,548.49/20,441.58
  6. Step 6: Final answer
    x = 15,849.00

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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.