Home / 20,904.01-28,847.55-11,951.70

Finding the Fourth Proportional to 20,904.01, 28,847.55 and 11,951.70

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Solution

The fourth proportional to 20,904.01, 28,847.55 and 11,951.70 is: 16,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904.01 : 28,847.55 = 11,951.70 : x
  2. Step 2: Convert to fraction form
    20,904.01/28,847.55 = 11,951.70/x
  3. Step 3: Cross multiply
    20,904.01x = 28,847.55 × 11,951.70
  4. Step 4: Simplify right side
    20,904.01x = 344,777,132.75
  5. Step 5: Solve for x
    x = 344,777,132.75/20,904.01
  6. Step 6: Final answer
    x = 16,493.35

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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.