Home / 21,336.96-29,441.52-12,836.96

Finding the Fourth Proportional to 21,336.96, 29,441.52 and 12,836.96

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Solution

The fourth proportional to 21,336.96, 29,441.52 and 12,836.96 is: 17,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,336.96 : 29,441.52 = 12,836.96 : x
  2. Step 2: Convert to fraction form
    21,336.96/29,441.52 = 12,836.96/x
  3. Step 3: Cross multiply
    21,336.96x = 29,441.52 × 12,836.96
  4. Step 4: Simplify right side
    21,336.96x = 377,939,614.58
  5. Step 5: Solve for x
    x = 377,939,614.58/21,336.96
  6. Step 6: Final answer
    x = 17,712.91

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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.