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Finding the Fourth Proportional to 47,707.44, 71,552.88 and 12,650.64

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Solution

The fourth proportional to 47,707.44, 71,552.88 and 12,650.64 is: 18,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,707.44 : 71,552.88 = 12,650.64 : x
  2. Step 2: Convert to fraction form
    47,707.44/71,552.88 = 12,650.64/x
  3. Step 3: Cross multiply
    47,707.44x = 71,552.88 × 12,650.64
  4. Step 4: Simplify right side
    47,707.44x = 905,189,725.84
  5. Step 5: Solve for x
    x = 905,189,725.84/47,707.44
  6. Step 6: Final answer
    x = 18,973.76

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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.