Home / 34,318.92-47,360.46-20,172

Finding the Fourth Proportional to 34,318.92, 47,360.46 and 20,172

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Solution

The fourth proportional to 34,318.92, 47,360.46 and 20,172 is: 27,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,318.92 : 47,360.46 = 20,172 : x
  2. Step 2: Convert to fraction form
    34,318.92/47,360.46 = 20,172/x
  3. Step 3: Cross multiply
    34,318.92x = 47,360.46 × 20,172
  4. Step 4: Simplify right side
    34,318.92x = 955,355,199.12
  5. Step 5: Solve for x
    x = 955,355,199.12/34,318.92
  6. Step 6: Final answer
    x = 27,837.57

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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.