Home / 18,588.34-27,857.91-13,634.79

Finding the Fourth Proportional to 18,588.34, 27,857.91 and 13,634.79

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Solution

The fourth proportional to 18,588.34, 27,857.91 and 13,634.79 is: 20,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.34 : 27,857.91 = 13,634.79 : x
  2. Step 2: Convert to fraction form
    18,588.34/27,857.91 = 13,634.79/x
  3. Step 3: Cross multiply
    18,588.34x = 27,857.91 × 13,634.79
  4. Step 4: Simplify right side
    18,588.34x = 379,836,622.66
  5. Step 5: Solve for x
    x = 379,836,622.66/18,588.34
  6. Step 6: Final answer
    x = 20,434.13

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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.