Home / 34,715.92-47,908.76-20,379.82

Finding the Fourth Proportional to 34,715.92, 47,908.76 and 20,379.82

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Solution

The fourth proportional to 34,715.92, 47,908.76 and 20,379.82 is: 28,124.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,715.92 : 47,908.76 = 20,379.82 : x
  2. Step 2: Convert to fraction form
    34,715.92/47,908.76 = 20,379.82/x
  3. Step 3: Cross multiply
    34,715.92x = 47,908.76 × 20,379.82
  4. Step 4: Simplify right side
    34,715.92x = 976,371,905.22
  5. Step 5: Solve for x
    x = 976,371,905.22/34,715.92
  6. Step 6: Final answer
    x = 28,124.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.