Home / 21,785.41-30,073.82-16,747.86

Finding the Fourth Proportional to 21,785.41, 30,073.82 and 16,747.86

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Solution

The fourth proportional to 21,785.41, 30,073.82 and 16,747.86 is: 23,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,785.41 : 30,073.82 = 16,747.86 : x
  2. Step 2: Convert to fraction form
    21,785.41/30,073.82 = 16,747.86/x
  3. Step 3: Cross multiply
    21,785.41x = 30,073.82 × 16,747.86
  4. Step 4: Simplify right side
    21,785.41x = 503,672,043.29
  5. Step 5: Solve for x
    x = 503,672,043.29/21,785.41
  6. Step 6: Final answer
    x = 23,119.70

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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.