Home / 31,599.72-47,399.58-13,847.76

Finding the Fourth Proportional to 31,599.72, 47,399.58 and 13,847.76

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Solution

The fourth proportional to 31,599.72, 47,399.58 and 13,847.76 is: 20,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,599.72 : 47,399.58 = 13,847.76 : x
  2. Step 2: Convert to fraction form
    31,599.72/47,399.58 = 13,847.76/x
  3. Step 3: Cross multiply
    31,599.72x = 47,399.58 × 13,847.76
  4. Step 4: Simplify right side
    31,599.72x = 656,378,007.94
  5. Step 5: Solve for x
    x = 656,378,007.94/31,599.72
  6. Step 6: Final answer
    x = 20,771.64

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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.