Home / 21,047.46-29,044.74-11,615.82

Finding the Fourth Proportional to 21,047.46, 29,044.74 and 11,615.82

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Solution

The fourth proportional to 21,047.46, 29,044.74 and 11,615.82 is: 16,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.46 : 29,044.74 = 11,615.82 : x
  2. Step 2: Convert to fraction form
    21,047.46/29,044.74 = 11,615.82/x
  3. Step 3: Cross multiply
    21,047.46x = 29,044.74 × 11,615.82
  4. Step 4: Simplify right side
    21,047.46x = 337,378,471.79
  5. Step 5: Solve for x
    x = 337,378,471.79/21,047.46
  6. Step 6: Final answer
    x = 16,029.42

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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.