Home / 21,059.12-29,062.92-11,627.72

Finding the Fourth Proportional to 21,059.12, 29,062.92 and 11,627.72

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Solution

The fourth proportional to 21,059.12, 29,062.92 and 11,627.72 is: 16,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.12 : 29,062.92 = 11,627.72 : x
  2. Step 2: Convert to fraction form
    21,059.12/29,062.92 = 11,627.72/x
  3. Step 3: Cross multiply
    21,059.12x = 29,062.92 × 11,627.72
  4. Step 4: Simplify right side
    21,059.12x = 337,935,496.14
  5. Step 5: Solve for x
    x = 337,935,496.14/21,059.12
  6. Step 6: Final answer
    x = 16,046.99

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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.