Home / 22,142.70-30,550.37-14,171.09

Finding the Fourth Proportional to 22,142.70, 30,550.37 and 14,171.09

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Solution

The fourth proportional to 22,142.70, 30,550.37 and 14,171.09 is: 19,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.70 : 30,550.37 = 14,171.09 : x
  2. Step 2: Convert to fraction form
    22,142.70/30,550.37 = 14,171.09/x
  3. Step 3: Cross multiply
    22,142.70x = 30,550.37 × 14,171.09
  4. Step 4: Simplify right side
    22,142.70x = 432,931,819.20
  5. Step 5: Solve for x
    x = 432,931,819.20/22,142.70
  6. Step 6: Final answer
    x = 19,551.90

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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.