Home / 47,708.64-71,558.10-12,651.84

Finding the Fourth Proportional to 47,708.64, 71,558.10 and 12,651.84

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Solution

The fourth proportional to 47,708.64, 71,558.10 and 12,651.84 is: 18,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,708.64 : 71,558.10 = 12,651.84 : x
  2. Step 2: Convert to fraction form
    47,708.64/71,558.10 = 12,651.84/x
  3. Step 3: Cross multiply
    47,708.64x = 71,558.10 × 12,651.84
  4. Step 4: Simplify right side
    47,708.64x = 905,341,631.90
  5. Step 5: Solve for x
    x = 905,341,631.90/47,708.64
  6. Step 6: Final answer
    x = 18,976.47

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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.