Home / 20,161.41-27,818.69-11,776.29

Finding the Fourth Proportional to 20,161.41, 27,818.69 and 11,776.29

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Solution

The fourth proportional to 20,161.41, 27,818.69 and 11,776.29 is: 16,248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.41 : 27,818.69 = 11,776.29 : x
  2. Step 2: Convert to fraction form
    20,161.41/27,818.69 = 11,776.29/x
  3. Step 3: Cross multiply
    20,161.41x = 27,818.69 × 11,776.29
  4. Step 4: Simplify right side
    20,161.41x = 327,600,901.98
  5. Step 5: Solve for x
    x = 327,600,901.98/20,161.41
  6. Step 6: Final answer
    x = 16,248.91

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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.