Home / 47,286.20-70,930.53-12,225.75

Finding the Fourth Proportional to 47,286.20, 70,930.53 and 12,225.75

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Solution

The fourth proportional to 47,286.20, 70,930.53 and 12,225.75 is: 18,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,286.20 : 70,930.53 = 12,225.75 : x
  2. Step 2: Convert to fraction form
    47,286.20/70,930.53 = 12,225.75/x
  3. Step 3: Cross multiply
    47,286.20x = 70,930.53 × 12,225.75
  4. Step 4: Simplify right side
    47,286.20x = 867,178,927.15
  5. Step 5: Solve for x
    x = 867,178,927.15/47,286.20
  6. Step 6: Final answer
    x = 18,338.94

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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.