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Finding the Fourth Proportional to 38,604.42, 57,866.97 and 21,928.85

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Solution

The fourth proportional to 38,604.42, 57,866.97 and 21,928.85 is: 32,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,604.42 : 57,866.97 = 21,928.85 : x
  2. Step 2: Convert to fraction form
    38,604.42/57,866.97 = 21,928.85/x
  3. Step 3: Cross multiply
    38,604.42x = 57,866.97 × 21,928.85
  4. Step 4: Simplify right side
    38,604.42x = 1,268,956,114.98
  5. Step 5: Solve for x
    x = 1,268,956,114.98/38,604.42
  6. Step 6: Final answer
    x = 32,870.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.