Home / 47,619.30-71,431.86-12,558.92

Finding the Fourth Proportional to 47,619.30, 71,431.86 and 12,558.92

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Solution

The fourth proportional to 47,619.30, 71,431.86 and 12,558.92 is: 18,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,619.30 : 71,431.86 = 12,558.92 : x
  2. Step 2: Convert to fraction form
    47,619.30/71,431.86 = 12,558.92/x
  3. Step 3: Cross multiply
    47,619.30x = 71,431.86 × 12,558.92
  4. Step 4: Simplify right side
    47,619.30x = 897,107,015.19
  5. Step 5: Solve for x
    x = 897,107,015.19/47,619.30
  6. Step 6: Final answer
    x = 18,839.15

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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.