Home / 38,942.01-58,518.54-21,185.79

Finding the Fourth Proportional to 38,942.01, 58,518.54 and 21,185.79

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Solution

The fourth proportional to 38,942.01, 58,518.54 and 21,185.79 is: 31,836.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,942.01 : 58,518.54 = 21,185.79 : x
  2. Step 2: Convert to fraction form
    38,942.01/58,518.54 = 21,185.79/x
  3. Step 3: Cross multiply
    38,942.01x = 58,518.54 × 21,185.79
  4. Step 4: Simplify right side
    38,942.01x = 1,239,761,499.55
  5. Step 5: Solve for x
    x = 1,239,761,499.55/38,942.01
  6. Step 6: Final answer
    x = 31,836.09

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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.