Home / 42,786.43-64,155.94-17,503.70

Finding the Fourth Proportional to 42,786.43, 64,155.94 and 17,503.70

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Solution

The fourth proportional to 42,786.43, 64,155.94 and 17,503.70 is: 26,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,786.43 : 64,155.94 = 17,503.70 : x
  2. Step 2: Convert to fraction form
    42,786.43/64,155.94 = 17,503.70/x
  3. Step 3: Cross multiply
    42,786.43x = 64,155.94 × 17,503.70
  4. Step 4: Simplify right side
    42,786.43x = 1,122,965,962.44
  5. Step 5: Solve for x
    x = 1,122,965,962.44/42,786.43
  6. Step 6: Final answer
    x = 26,245.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.