Home / 21,682.32-29,919.96-12,251.76

Finding the Fourth Proportional to 21,682.32, 29,919.96 and 12,251.76

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Solution

The fourth proportional to 21,682.32, 29,919.96 and 12,251.76 is: 16,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,682.32 : 29,919.96 = 12,251.76 : x
  2. Step 2: Convert to fraction form
    21,682.32/29,919.96 = 12,251.76/x
  3. Step 3: Cross multiply
    21,682.32x = 29,919.96 × 12,251.76
  4. Step 4: Simplify right side
    21,682.32x = 366,572,169.13
  5. Step 5: Solve for x
    x = 366,572,169.13/21,682.32
  6. Step 6: Final answer
    x = 16,906.50

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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.