Home / 21,622.27-29,837.24-12,188.83

Finding the Fourth Proportional to 21,622.27, 29,837.24 and 12,188.83

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Solution

The fourth proportional to 21,622.27, 29,837.24 and 12,188.83 is: 16,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.27 : 29,837.24 = 12,188.83 : x
  2. Step 2: Convert to fraction form
    21,622.27/29,837.24 = 12,188.83/x
  3. Step 3: Cross multiply
    21,622.27x = 29,837.24 × 12,188.83
  4. Step 4: Simplify right side
    21,622.27x = 363,680,985.09
  5. Step 5: Solve for x
    x = 363,680,985.09/21,622.27
  6. Step 6: Final answer
    x = 16,819.74

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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.