Home / 31,736.55-47,636.85-13,975.12

Finding the Fourth Proportional to 31,736.55, 47,636.85 and 13,975.12

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Solution

The fourth proportional to 31,736.55, 47,636.85 and 13,975.12 is: 20,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.55 : 47,636.85 = 13,975.12 : x
  2. Step 2: Convert to fraction form
    31,736.55/47,636.85 = 13,975.12/x
  3. Step 3: Cross multiply
    31,736.55x = 47,636.85 × 13,975.12
  4. Step 4: Simplify right side
    31,736.55x = 665,730,695.17
  5. Step 5: Solve for x
    x = 665,730,695.17/31,736.55
  6. Step 6: Final answer
    x = 20,976.78

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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.