Home / 48,491.92-72,729.64-13,423.38

Finding the Fourth Proportional to 48,491.92, 72,729.64 and 13,423.38

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Solution

The fourth proportional to 48,491.92, 72,729.64 and 13,423.38 is: 20,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,491.92 : 72,729.64 = 13,423.38 : x
  2. Step 2: Convert to fraction form
    48,491.92/72,729.64 = 13,423.38/x
  3. Step 3: Cross multiply
    48,491.92x = 72,729.64 × 13,423.38
  4. Step 4: Simplify right side
    48,491.92x = 976,277,594.98
  5. Step 5: Solve for x
    x = 976,277,594.98/48,491.92
  6. Step 6: Final answer
    x = 20,132.79

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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.