Home / 21,295.13-31,932.96-7,958.34

Finding the Fourth Proportional to 21,295.13, 31,932.96 and 7,958.34

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Solution

The fourth proportional to 21,295.13, 31,932.96 and 7,958.34 is: 11,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.13 : 31,932.96 = 7,958.34 : x
  2. Step 2: Convert to fraction form
    21,295.13/31,932.96 = 7,958.34/x
  3. Step 3: Cross multiply
    21,295.13x = 31,932.96 × 7,958.34
  4. Step 4: Simplify right side
    21,295.13x = 254,133,323.04
  5. Step 5: Solve for x
    x = 254,133,323.04/21,295.13
  6. Step 6: Final answer
    x = 11,933.87

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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.