Home / 20,022.75-27,631.44-12,065.31

Finding the Fourth Proportional to 20,022.75, 27,631.44 and 12,065.31

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Solution

The fourth proportional to 20,022.75, 27,631.44 and 12,065.31 is: 16,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,022.75 : 27,631.44 = 12,065.31 : x
  2. Step 2: Convert to fraction form
    20,022.75/27,631.44 = 12,065.31/x
  3. Step 3: Cross multiply
    20,022.75x = 27,631.44 × 12,065.31
  4. Step 4: Simplify right side
    20,022.75x = 333,381,889.35
  5. Step 5: Solve for x
    x = 333,381,889.35/20,022.75
  6. Step 6: Final answer
    x = 16,650.15

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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.