Home / 47,855.38-71,782.57-12,316.56

Finding the Fourth Proportional to 47,855.38, 71,782.57 and 12,316.56

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Solution

The fourth proportional to 47,855.38, 71,782.57 and 12,316.56 is: 18,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,855.38 : 71,782.57 = 12,316.56 : x
  2. Step 2: Convert to fraction form
    47,855.38/71,782.57 = 12,316.56/x
  3. Step 3: Cross multiply
    47,855.38x = 71,782.57 × 12,316.56
  4. Step 4: Simplify right side
    47,855.38x = 884,114,002.24
  5. Step 5: Solve for x
    x = 884,114,002.24/47,855.38
  6. Step 6: Final answer
    x = 18,474.71

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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.