Home / 22,390.58-30,903.41-12,836.88

Finding the Fourth Proportional to 22,390.58, 30,903.41 and 12,836.88

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Solution

The fourth proportional to 22,390.58, 30,903.41 and 12,836.88 is: 17,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,390.58 : 30,903.41 = 12,836.88 : x
  2. Step 2: Convert to fraction form
    22,390.58/30,903.41 = 12,836.88/x
  3. Step 3: Cross multiply
    22,390.58x = 30,903.41 × 12,836.88
  4. Step 4: Simplify right side
    22,390.58x = 396,703,397.85
  5. Step 5: Solve for x
    x = 396,703,397.85/22,390.58
  6. Step 6: Final answer
    x = 17,717.43

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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.