Home / 47,924.92-71,880.78-12,865

Finding the Fourth Proportional to 47,924.92, 71,880.78 and 12,865

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Solution

The fourth proportional to 47,924.92, 71,880.78 and 12,865 is: 19,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,924.92 : 71,880.78 = 12,865 : x
  2. Step 2: Convert to fraction form
    47,924.92/71,880.78 = 12,865/x
  3. Step 3: Cross multiply
    47,924.92x = 71,880.78 × 12,865
  4. Step 4: Simplify right side
    47,924.92x = 924,746,234.70
  5. Step 5: Solve for x
    x = 924,746,234.70/47,924.92
  6. Step 6: Final answer
    x = 19,295.73

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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.