Home / 21,584.32-29,786.34-12,152.68

Finding the Fourth Proportional to 21,584.32, 29,786.34 and 12,152.68

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Solution

The fourth proportional to 21,584.32, 29,786.34 and 12,152.68 is: 16,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.32 : 29,786.34 = 12,152.68 : x
  2. Step 2: Convert to fraction form
    21,584.32/29,786.34 = 12,152.68/x
  3. Step 3: Cross multiply
    21,584.32x = 29,786.34 × 12,152.68
  4. Step 4: Simplify right side
    21,584.32x = 361,983,858.39
  5. Step 5: Solve for x
    x = 361,983,858.39/21,584.32
  6. Step 6: Final answer
    x = 16,770.69

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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.