Home / 31,455.75-47,190.92-10,679.25

Finding the Fourth Proportional to 31,455.75, 47,190.92 and 10,679.25

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Solution

The fourth proportional to 31,455.75, 47,190.92 and 10,679.25 is: 16,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455.75 : 47,190.92 = 10,679.25 : x
  2. Step 2: Convert to fraction form
    31,455.75/47,190.92 = 10,679.25/x
  3. Step 3: Cross multiply
    31,455.75x = 47,190.92 × 10,679.25
  4. Step 4: Simplify right side
    31,455.75x = 503,963,579.01
  5. Step 5: Solve for x
    x = 503,963,579.01/31,455.75
  6. Step 6: Final answer
    x = 16,021.35

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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.