Home / 27,786.10-38,305.29-17,169.70

Finding the Fourth Proportional to 27,786.10, 38,305.29 and 17,169.70

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Solution

The fourth proportional to 27,786.10, 38,305.29 and 17,169.70 is: 23,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.10 : 38,305.29 = 17,169.70 : x
  2. Step 2: Convert to fraction form
    27,786.10/38,305.29 = 17,169.70/x
  3. Step 3: Cross multiply
    27,786.10x = 38,305.29 × 17,169.70
  4. Step 4: Simplify right side
    27,786.10x = 657,690,337.71
  5. Step 5: Solve for x
    x = 657,690,337.71/27,786.10
  6. Step 6: Final answer
    x = 23,669.76

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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.