Home / 47,780.35-71,631.64-19,684.69

Finding the Fourth Proportional to 47,780.35, 71,631.64 and 19,684.69

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Solution

The fourth proportional to 47,780.35, 71,631.64 and 19,684.69 is: 29,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,780.35 : 71,631.64 = 19,684.69 : x
  2. Step 2: Convert to fraction form
    47,780.35/71,631.64 = 19,684.69/x
  3. Step 3: Cross multiply
    47,780.35x = 71,631.64 × 19,684.69
  4. Step 4: Simplify right side
    47,780.35x = 1,410,046,627.59
  5. Step 5: Solve for x
    x = 1,410,046,627.59/47,780.35
  6. Step 6: Final answer
    x = 29,511.02

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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.