Home / 21,174.81-31,773.06-9,336.84

Finding the Fourth Proportional to 21,174.81, 31,773.06 and 9,336.84

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Solution

The fourth proportional to 21,174.81, 31,773.06 and 9,336.84 is: 14,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.81 : 31,773.06 = 9,336.84 : x
  2. Step 2: Convert to fraction form
    21,174.81/31,773.06 = 9,336.84/x
  3. Step 3: Cross multiply
    21,174.81x = 31,773.06 × 9,336.84
  4. Step 4: Simplify right side
    21,174.81x = 296,659,977.53
  5. Step 5: Solve for x
    x = 296,659,977.53/21,174.81
  6. Step 6: Final answer
    x = 14,010.04

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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.