Home / 31,584.68-47,379.54-18,438.38

Finding the Fourth Proportional to 31,584.68, 47,379.54 and 18,438.38

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Solution

The fourth proportional to 31,584.68, 47,379.54 and 18,438.38 is: 27,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.68 : 47,379.54 = 18,438.38 : x
  2. Step 2: Convert to fraction form
    31,584.68/47,379.54 = 18,438.38/x
  3. Step 3: Cross multiply
    31,584.68x = 47,379.54 × 18,438.38
  4. Step 4: Simplify right side
    31,584.68x = 873,601,962.75
  5. Step 5: Solve for x
    x = 873,601,962.75/31,584.68
  6. Step 6: Final answer
    x = 27,659.04

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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.