Home / 31,890.00-47,819.06-18,567.38

Finding the Fourth Proportional to 31,890.00, 47,819.06 and 18,567.38

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Solution

The fourth proportional to 31,890.00, 47,819.06 and 18,567.38 is: 27,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,890.00 : 47,819.06 = 18,567.38 : x
  2. Step 2: Convert to fraction form
    31,890.00/47,819.06 = 18,567.38/x
  3. Step 3: Cross multiply
    31,890.00x = 47,819.06 × 18,567.38
  4. Step 4: Simplify right side
    31,890.00x = 887,874,485.62
  5. Step 5: Solve for x
    x = 887,874,485.62/31,890.00
  6. Step 6: Final answer
    x = 27,841.78

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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.