Home / 27,781.10-38,298.39-17,164.70

Finding the Fourth Proportional to 27,781.10, 38,298.39 and 17,164.70

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Solution

The fourth proportional to 27,781.10, 38,298.39 and 17,164.70 is: 23,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.10 : 38,298.39 = 17,164.70 : x
  2. Step 2: Convert to fraction form
    27,781.10/38,298.39 = 17,164.70/x
  3. Step 3: Cross multiply
    27,781.10x = 38,298.39 × 17,164.70
  4. Step 4: Simplify right side
    27,781.10x = 657,380,374.83
  5. Step 5: Solve for x
    x = 657,380,374.83/27,781.10
  6. Step 6: Final answer
    x = 23,662.86

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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.