Home / 21,029.42-29,020.38-11,597.78

Finding the Fourth Proportional to 21,029.42, 29,020.38 and 11,597.78

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Solution

The fourth proportional to 21,029.42, 29,020.38 and 11,597.78 is: 16,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.42 : 29,020.38 = 11,597.78 : x
  2. Step 2: Convert to fraction form
    21,029.42/29,020.38 = 11,597.78/x
  3. Step 3: Cross multiply
    21,029.42x = 29,020.38 × 11,597.78
  4. Step 4: Simplify right side
    21,029.42x = 336,571,982.76
  5. Step 5: Solve for x
    x = 336,571,982.76/21,029.42
  6. Step 6: Final answer
    x = 16,004.82

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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.