Home / 38,668.12-57,989.84-12,366.64

Finding the Fourth Proportional to 38,668.12, 57,989.84 and 12,366.64

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Solution

The fourth proportional to 38,668.12, 57,989.84 and 12,366.64 is: 18,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,668.12 : 57,989.84 = 12,366.64 : x
  2. Step 2: Convert to fraction form
    38,668.12/57,989.84 = 12,366.64/x
  3. Step 3: Cross multiply
    38,668.12x = 57,989.84 × 12,366.64
  4. Step 4: Simplify right side
    38,668.12x = 717,139,474.94
  5. Step 5: Solve for x
    x = 717,139,474.94/38,668.12
  6. Step 6: Final answer
    x = 18,546.01

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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.