Home / 31,893.72-47,842.55-9,708.75

Finding the Fourth Proportional to 31,893.72, 47,842.55 and 9,708.75

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Solution

The fourth proportional to 31,893.72, 47,842.55 and 9,708.75 is: 14,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,893.72 : 47,842.55 = 9,708.75 : x
  2. Step 2: Convert to fraction form
    31,893.72/47,842.55 = 9,708.75/x
  3. Step 3: Cross multiply
    31,893.72x = 47,842.55 × 9,708.75
  4. Step 4: Simplify right side
    31,893.72x = 464,491,308.77
  5. Step 5: Solve for x
    x = 464,491,308.77/31,893.72
  6. Step 6: Final answer
    x = 14,563.72

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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.