Home / 21,584.10-29,785.95-12,152.73

Finding the Fourth Proportional to 21,584.10, 29,785.95 and 12,152.73

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Solution

The fourth proportional to 21,584.10, 29,785.95 and 12,152.73 is: 16,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.10 : 29,785.95 = 12,152.73 : x
  2. Step 2: Convert to fraction form
    21,584.10/29,785.95 = 12,152.73/x
  3. Step 3: Cross multiply
    21,584.10x = 29,785.95 × 12,152.73
  4. Step 4: Simplify right side
    21,584.10x = 361,980,608.14
  5. Step 5: Solve for x
    x = 361,980,608.14/21,584.10
  6. Step 6: Final answer
    x = 16,770.71

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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.