Home / 18,145.89-27,083.61-17,703.09

Finding the Fourth Proportional to 18,145.89, 27,083.61 and 17,703.09

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Solution

The fourth proportional to 18,145.89, 27,083.61 and 17,703.09 is: 26,422.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145.89 : 27,083.61 = 17,703.09 : x
  2. Step 2: Convert to fraction form
    18,145.89/27,083.61 = 17,703.09/x
  3. Step 3: Cross multiply
    18,145.89x = 27,083.61 × 17,703.09
  4. Step 4: Simplify right side
    18,145.89x = 479,463,585.35
  5. Step 5: Solve for x
    x = 479,463,585.35/18,145.89
  6. Step 6: Final answer
    x = 26,422.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.