Home / 20,904.85-28,848.49-11,344.73

Finding the Fourth Proportional to 20,904.85, 28,848.49 and 11,344.73

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Solution

The fourth proportional to 20,904.85, 28,848.49 and 11,344.73 is: 15,655.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.85 : 28,848.49 = 11,344.73 : x
  2. Step 2: Convert to fraction form
    20,904.85/28,848.49 = 11,344.73/x
  3. Step 3: Cross multiply
    20,904.85x = 28,848.49 × 11,344.73
  4. Step 4: Simplify right side
    20,904.85x = 327,278,157.35
  5. Step 5: Solve for x
    x = 327,278,157.35/20,904.85
  6. Step 6: Final answer
    x = 15,655.61

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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.