Home / 21,060.64-29,063.30-11,629

Finding the Fourth Proportional to 21,060.64, 29,063.30 and 11,629

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Solution

The fourth proportional to 21,060.64, 29,063.30 and 11,629 is: 16,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.64 : 29,063.30 = 11,629 : x
  2. Step 2: Convert to fraction form
    21,060.64/29,063.30 = 11,629/x
  3. Step 3: Cross multiply
    21,060.64x = 29,063.30 × 11,629
  4. Step 4: Simplify right side
    21,060.64x = 337,977,115.70
  5. Step 5: Solve for x
    x = 337,977,115.70/21,060.64
  6. Step 6: Final answer
    x = 16,047.81

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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.