Home / 38,658.61-57,991.46-12,004.75

Finding the Fourth Proportional to 38,658.61, 57,991.46 and 12,004.75

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Solution

The fourth proportional to 38,658.61, 57,991.46 and 12,004.75 is: 18,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.61 : 57,991.46 = 12,004.75 : x
  2. Step 2: Convert to fraction form
    38,658.61/57,991.46 = 12,004.75/x
  3. Step 3: Cross multiply
    38,658.61x = 57,991.46 × 12,004.75
  4. Step 4: Simplify right side
    38,658.61x = 696,172,979.44
  5. Step 5: Solve for x
    x = 696,172,979.44/38,658.61
  6. Step 6: Final answer
    x = 18,008.23

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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.