Home / 31,544.72-47,310.20-11,812.24

Finding the Fourth Proportional to 31,544.72, 47,310.20 and 11,812.24

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Solution

The fourth proportional to 31,544.72, 47,310.20 and 11,812.24 is: 17,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.72 : 47,310.20 = 11,812.24 : x
  2. Step 2: Convert to fraction form
    31,544.72/47,310.20 = 11,812.24/x
  3. Step 3: Cross multiply
    31,544.72x = 47,310.20 × 11,812.24
  4. Step 4: Simplify right side
    31,544.72x = 558,839,436.85
  5. Step 5: Solve for x
    x = 558,839,436.85/31,544.72
  6. Step 6: Final answer
    x = 17,715.78

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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.