Home / 31,940.72-47,922-12,224.92

Finding the Fourth Proportional to 31,940.72, 47,922 and 12,224.92

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Solution

The fourth proportional to 31,940.72, 47,922 and 12,224.92 is: 18,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.72 : 47,922 = 12,224.92 : x
  2. Step 2: Convert to fraction form
    31,940.72/47,922 = 12,224.92/x
  3. Step 3: Cross multiply
    31,940.72x = 47,922 × 12,224.92
  4. Step 4: Simplify right side
    31,940.72x = 585,842,616.24
  5. Step 5: Solve for x
    x = 585,842,616.24/31,940.72
  6. Step 6: Final answer
    x = 18,341.56

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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.