Home / 20,020.40-27,619.32-12,057.92

Finding the Fourth Proportional to 20,020.40, 27,619.32 and 12,057.92

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Solution

The fourth proportional to 20,020.40, 27,619.32 and 12,057.92 is: 16,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.40 : 27,619.32 = 12,057.92 : x
  2. Step 2: Convert to fraction form
    20,020.40/27,619.32 = 12,057.92/x
  3. Step 3: Cross multiply
    20,020.40x = 27,619.32 × 12,057.92
  4. Step 4: Simplify right side
    20,020.40x = 333,031,551.01
  5. Step 5: Solve for x
    x = 333,031,551.01/20,020.40
  6. Step 6: Final answer
    x = 16,634.61

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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.