Home / 21,369.24-29,489.58-11,937.87

Finding the Fourth Proportional to 21,369.24, 29,489.58 and 11,937.87

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Solution

The fourth proportional to 21,369.24, 29,489.58 and 11,937.87 is: 16,474.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,369.24 : 29,489.58 = 11,937.87 : x
  2. Step 2: Convert to fraction form
    21,369.24/29,489.58 = 11,937.87/x
  3. Step 3: Cross multiply
    21,369.24x = 29,489.58 × 11,937.87
  4. Step 4: Simplify right side
    21,369.24x = 352,042,772.39
  5. Step 5: Solve for x
    x = 352,042,772.39/21,369.24
  6. Step 6: Final answer
    x = 16,474.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.