Home / 31,469.68-47,212.72-11,748.40

Finding the Fourth Proportional to 31,469.68, 47,212.72 and 11,748.40

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Solution

The fourth proportional to 31,469.68, 47,212.72 and 11,748.40 is: 17,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.68 : 47,212.72 = 11,748.40 : x
  2. Step 2: Convert to fraction form
    31,469.68/47,212.72 = 11,748.40/x
  3. Step 3: Cross multiply
    31,469.68x = 47,212.72 × 11,748.40
  4. Step 4: Simplify right side
    31,469.68x = 554,673,919.65
  5. Step 5: Solve for x
    x = 554,673,919.65/31,469.68
  6. Step 6: Final answer
    x = 17,625.66

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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.