Home / 20,944.42-28,903.90-11,992.84

Finding the Fourth Proportional to 20,944.42, 28,903.90 and 11,992.84

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Solution

The fourth proportional to 20,944.42, 28,903.90 and 11,992.84 is: 16,550.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,944.42 : 28,903.90 = 11,992.84 : x
  2. Step 2: Convert to fraction form
    20,944.42/28,903.90 = 11,992.84/x
  3. Step 3: Cross multiply
    20,944.42x = 28,903.90 × 11,992.84
  4. Step 4: Simplify right side
    20,944.42x = 346,639,848.08
  5. Step 5: Solve for x
    x = 346,639,848.08/20,944.42
  6. Step 6: Final answer
    x = 16,550.46

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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.