Home / 19,733.21-27,231.92-10,780.86

Finding the Fourth Proportional to 19,733.21, 27,231.92 and 10,780.86

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Solution

The fourth proportional to 19,733.21, 27,231.92 and 10,780.86 is: 14,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,733.21 : 27,231.92 = 10,780.86 : x
  2. Step 2: Convert to fraction form
    19,733.21/27,231.92 = 10,780.86/x
  3. Step 3: Cross multiply
    19,733.21x = 27,231.92 × 10,780.86
  4. Step 4: Simplify right side
    19,733.21x = 293,583,517.05
  5. Step 5: Solve for x
    x = 293,583,517.05/19,733.21
  6. Step 6: Final answer
    x = 14,877.64

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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.