Home / 31,469.07-47,204.54-7,776.61

Finding the Fourth Proportional to 31,469.07, 47,204.54 and 7,776.61

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Solution

The fourth proportional to 31,469.07, 47,204.54 and 7,776.61 is: 11,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.07 : 47,204.54 = 7,776.61 : x
  2. Step 2: Convert to fraction form
    31,469.07/47,204.54 = 7,776.61/x
  3. Step 3: Cross multiply
    31,469.07x = 47,204.54 × 7,776.61
  4. Step 4: Simplify right side
    31,469.07x = 367,091,213.82
  5. Step 5: Solve for x
    x = 367,091,213.82/31,469.07
  6. Step 6: Final answer
    x = 11,665.14

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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.