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Finding the Fourth Proportional to 21,062.26, 29,065.26 and 11,630.08

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Solution

The fourth proportional to 21,062.26, 29,065.26 and 11,630.08 is: 16,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.26 : 29,065.26 = 11,630.08 : x
  2. Step 2: Convert to fraction form
    21,062.26/29,065.26 = 11,630.08/x
  3. Step 3: Cross multiply
    21,062.26x = 29,065.26 × 11,630.08
  4. Step 4: Simplify right side
    21,062.26x = 338,031,299.02
  5. Step 5: Solve for x
    x = 338,031,299.02/21,062.26
  6. Step 6: Final answer
    x = 16,049.15

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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.