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Finding the Fourth Proportional to 18,305.93, 27,495.75 and 17,789.15

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Solution

The fourth proportional to 18,305.93, 27,495.75 and 17,789.15 is: 26,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.93 : 27,495.75 = 17,789.15 : x
  2. Step 2: Convert to fraction form
    18,305.93/27,495.75 = 17,789.15/x
  3. Step 3: Cross multiply
    18,305.93x = 27,495.75 × 17,789.15
  4. Step 4: Simplify right side
    18,305.93x = 489,125,883.63
  5. Step 5: Solve for x
    x = 489,125,883.63/18,305.93
  6. Step 6: Final answer
    x = 26,719.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.