Home / 31,930.81-47,896.20-15,059.90

Finding the Fourth Proportional to 31,930.81, 47,896.20 and 15,059.90

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Solution

The fourth proportional to 31,930.81, 47,896.20 and 15,059.90 is: 22,589.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,930.81 : 47,896.20 = 15,059.90 : x
  2. Step 2: Convert to fraction form
    31,930.81/47,896.20 = 15,059.90/x
  3. Step 3: Cross multiply
    31,930.81x = 47,896.20 × 15,059.90
  4. Step 4: Simplify right side
    31,930.81x = 721,311,667.60
  5. Step 5: Solve for x
    x = 721,311,667.60/31,930.81
  6. Step 6: Final answer
    x = 22,589.83

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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.