Home / 31,410.10-47,120.92-10,351.38

Finding the Fourth Proportional to 31,410.10, 47,120.92 and 10,351.38

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Solution

The fourth proportional to 31,410.10, 47,120.92 and 10,351.38 is: 15,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.10 : 47,120.92 = 10,351.38 : x
  2. Step 2: Convert to fraction form
    31,410.10/47,120.92 = 10,351.38/x
  3. Step 3: Cross multiply
    31,410.10x = 47,120.92 × 10,351.38
  4. Step 4: Simplify right side
    31,410.10x = 487,766,522.99
  5. Step 5: Solve for x
    x = 487,766,522.99/31,410.10
  6. Step 6: Final answer
    x = 15,528.97

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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.