Home / 21,609.38-29,820.45-12,049.26

Finding the Fourth Proportional to 21,609.38, 29,820.45 and 12,049.26

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Solution

The fourth proportional to 21,609.38, 29,820.45 and 12,049.26 is: 16,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.38 : 29,820.45 = 12,049.26 : x
  2. Step 2: Convert to fraction form
    21,609.38/29,820.45 = 12,049.26/x
  3. Step 3: Cross multiply
    21,609.38x = 29,820.45 × 12,049.26
  4. Step 4: Simplify right side
    21,609.38x = 359,314,288.73
  5. Step 5: Solve for x
    x = 359,314,288.73/21,609.38
  6. Step 6: Final answer
    x = 16,627.70

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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.