Home / 31,477.23-47,245.01-15,905.79

Finding the Fourth Proportional to 31,477.23, 47,245.01 and 15,905.79

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Solution

The fourth proportional to 31,477.23, 47,245.01 and 15,905.79 is: 23,873.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.23 : 47,245.01 = 15,905.79 : x
  2. Step 2: Convert to fraction form
    31,477.23/47,245.01 = 15,905.79/x
  3. Step 3: Cross multiply
    31,477.23x = 47,245.01 × 15,905.79
  4. Step 4: Simplify right side
    31,477.23x = 751,469,128.08
  5. Step 5: Solve for x
    x = 751,469,128.08/31,477.23
  6. Step 6: Final answer
    x = 23,873.42

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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.