Home / 21,029.17-29,020.28-11,469.07

Finding the Fourth Proportional to 21,029.17, 29,020.28 and 11,469.07

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Solution

The fourth proportional to 21,029.17, 29,020.28 and 11,469.07 is: 15,827.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.17 : 29,020.28 = 11,469.07 : x
  2. Step 2: Convert to fraction form
    21,029.17/29,020.28 = 11,469.07/x
  3. Step 3: Cross multiply
    21,029.17x = 29,020.28 × 11,469.07
  4. Step 4: Simplify right side
    21,029.17x = 332,835,622.74
  5. Step 5: Solve for x
    x = 332,835,622.74/21,029.17
  6. Step 6: Final answer
    x = 15,827.33

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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.